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9dlz

Bovine Arp2/3 complex with N-WASP CA bound to Arp3

Method: ELECTRON MICROSCOPY Dmax: 146.3 Å Quality: EXCELLENT
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Actin-related protein 3

OrganismNot specified

UniProt P61157

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain A； UniProt 3–413 Not recorded Actin-related protein 2 × 1 （A7MB62） Actin-related protein 2/3 complex subunit 1A × 1 （Q1JP79） Actin-related protein 2/3 complex subunit 2 × 1 （Q3MHR7） Actin-related protein 2/3 complex subunit 3 × 1 （Q3T035） Actin-related protein 2/3 complex subunit 4 × 1 （Q148J6） Actin-related protein 2/3 complex subunit 5 × 1 （Q3SYX9） WASP like actin nucleation promoting factor × 2 （A0A7J7WN29） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 9DLZ Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1K8K Crystal Structure of Arp2/3 Complex Deposited 2001-10-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 8000, KSCN, Hepes at pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.00 Å R-free 0.251
1TYQ Crystal structure of Arp2/3 complex with bound ATP and calcium Deposited 2004-07-08 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；PEG 8000, potassium thiocyanate, Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.55 Å R-free 0.272
1U2V Crystal structure of Arp2/3 complex with bound ADP and calcium Deposited 2004-07-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；Hepes, potassium thiocyanate, PEG 8000, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.55 Å R-free 0.258
1U2V Crystal structure of Arp2/3 complex with bound ADP and calcium Deposited 2004-07-20 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；Hepes, potassium thiocyanate, PEG 8000, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.55 Å R-free 0.258
2P9I Crystal Structure of bovine Arp2/3 Complex co-crystallized with ADP and crosslinked with gluteraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.46 Å R-free 0.261
2P9K Crystal structure of bovine Arp2/3 complex co-crystallized with ATP and crosslinked with glutaraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；7.5% PEG 3350, 50mM HEPES, 100mM KSCN, 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.59 Å R-free 0.260
2P9L Crystal Structure of bovine Arp2/3 complex Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.65 Å R-free 0.266
2P9N Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；6% PEG 8000 100mM HEPES 100mM KSCN, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.85 Å R-free 0.272
2P9P Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.288
2P9S Structure of bovine Arp2/3 complex co-crystallized with ATP/Mg2+ Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded MG MAGNESIUM ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.68 Å R-free 0.261
2P9U Crystal structure of bovine Arp2/3 complex co-crystallized with AMP-PNP and calcium Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.75 Å R-free 0.265
3DXK Structure of Bos Taurus Arp2/3 Complex with Bound Inhibitor CK0944636 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded N23 N-[2-(2-methyl-1H-indol-3-yl)ethyl]thiophene-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.262
3DXM Structure of Bos taurus Arp2/3 Complex with Bound Inhibitor CK0993548 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded N24 (2S)-2-(3-bromophenyl)-3-(5-chloro-2-hydroxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.85 Å R-free 0.258
3RSE Structural and biochemical characterization of two binding sites for nucleation promoting factor WASp-VCA on Arp2/3 complex Deposited 2011-05-02 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–418（418 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；100 mM HEPES 7.5, 8% PEG 8000, 200 mM KCl, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.65 Å R-free 0.259
3UKR Crystal structure of Bos taurus Arp2/3 complex with bound inhibitor CK-666 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded CKH 2-fluoro-N-[2-(2-methyl-1H-indol-3-yl)ethyl]benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1M Hepes (pH 7.5), 0.2M KSCN, 16% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.48 Å R-free 0.261
3UKU Structure of Arp2/3 complex with bound inhibitor CK-869 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；278 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.75 Å R-free 0.301
3ULE Structure of Bos taurus Arp2/3 complex with bound inhibitor CK-869 and ATP Deposited 2011-11-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.274
4JD2 Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF Deposited 2013-02-22 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.08 Å R-free 0.248
4XEI Orthorhombic isomorph of bovine Arp2/3 complex Deposited 2014-12-23 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277 K；Ethanol 10%, 1,4-butanediol 15%, 100 mM Tris 7.4
Resolution 3.87 Å R-free 0.329
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain A 1–418（418 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain T 1–418（418 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–418（418 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain H 1–418（418 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
7JPN Cryo-EM structure of Arpin-bound Arp2/3 complex Deposited 2020-08-09 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 3–415（413 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.24 Å
7T5Q Cryo-EM Structure of a Transition State of Arp2/3 Complex Activation Deposited 2021-12-13 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric
Chain A 1–418（418 aa）
Not recorded MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.40 Å
7TPT Single-particle Cryo-EM structure of Arp2/3 complex at branched-actin junction. Deposited 2022-01-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain A 1–418（418 aa）
Not recorded MG MAGNESIUM ION × 16 ADP ADENOSINE-5'-DIPHOSPHATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8TAH Cryo-EM structure of Cortactin-bound to Arp2/3 complex Deposited 2023-06-27 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–418（418 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；10 mM imidazole pH 7.0, 50 mM KCl, 2 mM MgCl2, 1 mM EGTA
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.89 Å
9DLX Bovine Arp2/3 complex with N-WASP CA bound to Arp3 and Arp2-ArpC1 Deposited 2024-09-11 Different construct Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric
Chain A 3–414（412 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain A 1–418（418 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9M5E Structure of SPIN90 dimer-Arp2/3 complex-nucleated actin filament (singlet complex) Deposited 2025-03-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric
Chain A 1–418（418 aa）
Not recorded MG MAGNESIUM ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9M64 Structure of SPIN90 dimer-Arp2/3 complexes-nucleated actin filaments (Doublet Complex) Deposited 2025-03-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain A 1–418（418 aa）
Chain a 1–418（418 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 12 MG MAGNESIUM ION × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

28 other PDB entries and 31 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ARP3_BOVIN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–411； UniProt 3–413

Actin-related protein 2

OrganismNot specified

UniProt A7MB62

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain B； UniProt 1–390 Not recorded Actin-related protein 3 × 1 （P61157） Actin-related protein 2/3 complex subunit 1A × 1 （Q1JP79） Actin-related protein 2/3 complex subunit 2 × 1 （Q3MHR7） Actin-related protein 2/3 complex subunit 3 × 1 （Q3T035） Actin-related protein 2/3 complex subunit 4 × 1 （Q148J6） Actin-related protein 2/3 complex subunit 5 × 1 （Q3SYX9） WASP like actin nucleation promoting factor × 2 （A0A7J7WN29） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 9DLZ Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1K8K Crystal Structure of Arp2/3 Complex Deposited 2001-10-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 8000, KSCN, Hepes at pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.00 Å R-free 0.251
2P9I Crystal Structure of bovine Arp2/3 Complex co-crystallized with ADP and crosslinked with gluteraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded CA CALCIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.46 Å R-free 0.261
2P9K Crystal structure of bovine Arp2/3 complex co-crystallized with ATP and crosslinked with glutaraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；7.5% PEG 3350, 50mM HEPES, 100mM KSCN, 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.59 Å R-free 0.260
2P9L Crystal Structure of bovine Arp2/3 complex Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.65 Å R-free 0.266
2P9N Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；6% PEG 8000 100mM HEPES 100mM KSCN, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.85 Å R-free 0.272
2P9P Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.288
2P9S Structure of bovine Arp2/3 complex co-crystallized with ATP/Mg2+ Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded MG MAGNESIUM ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.68 Å R-free 0.261
2P9U Crystal structure of bovine Arp2/3 complex co-crystallized with AMP-PNP and calcium Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded CA CALCIUM ION × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.75 Å R-free 0.265
3DXK Structure of Bos Taurus Arp2/3 Complex with Bound Inhibitor CK0944636 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded N23 N-[2-(2-methyl-1H-indol-3-yl)ethyl]thiophene-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.262
3DXM Structure of Bos taurus Arp2/3 Complex with Bound Inhibitor CK0993548 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded N24 (2S)-2-(3-bromophenyl)-3-(5-chloro-2-hydroxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.85 Å R-free 0.258
3RSE Structural and biochemical characterization of two binding sites for nucleation promoting factor WASp-VCA on Arp2/3 complex Deposited 2011-05-02 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain B 1–394（394 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；100 mM HEPES 7.5, 8% PEG 8000, 200 mM KCl, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.65 Å R-free 0.259
3UKR Crystal structure of Bos taurus Arp2/3 complex with bound inhibitor CK-666 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded CKH 2-fluoro-N-[2-(2-methyl-1H-indol-3-yl)ethyl]benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1M Hepes (pH 7.5), 0.2M KSCN, 16% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.48 Å R-free 0.261
3UKU Structure of Arp2/3 complex with bound inhibitor CK-869 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；278 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.75 Å R-free 0.301
3ULE Structure of Bos taurus Arp2/3 complex with bound inhibitor CK-869 and ATP Deposited 2011-11-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.274
4JD2 Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF Deposited 2013-02-22 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain B 1–394（394 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.08 Å R-free 0.248
4XEI Orthorhombic isomorph of bovine Arp2/3 complex Deposited 2014-12-23 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277 K；Ethanol 10%, 1,4-butanediol 15%, 100 mM Tris 7.4
Resolution 3.87 Å R-free 0.329
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain B 1–394（394 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain U 1–394（394 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain B 1–394（394 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain I 1–394（394 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
7JPN Cryo-EM structure of Arpin-bound Arp2/3 complex Deposited 2020-08-09 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain B 4–380（377 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.24 Å
7T5Q Cryo-EM Structure of a Transition State of Arp2/3 Complex Activation Deposited 2021-12-13 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric
Chain B 1–394（394 aa）
Not recorded MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.40 Å
7TPT Single-particle Cryo-EM structure of Arp2/3 complex at branched-actin junction. Deposited 2022-01-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain B 1–394（394 aa）
Not recorded MG MAGNESIUM ION × 16 ADP ADENOSINE-5'-DIPHOSPHATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8TAH Cryo-EM structure of Cortactin-bound to Arp2/3 complex Deposited 2023-06-27 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain B 1–394（394 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；10 mM imidazole pH 7.0, 50 mM KCl, 2 mM MgCl2, 1 mM EGTA
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.89 Å
9DLX Bovine Arp2/3 complex with N-WASP CA bound to Arp3 and Arp2-ArpC1 Deposited 2024-09-11 Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric
Chain B 1–390（390 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain B 1–394（394 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9M5E Structure of SPIN90 dimer-Arp2/3 complex-nucleated actin filament (singlet complex) Deposited 2025-03-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric
Chain B 1–394（394 aa）
Not recorded MG MAGNESIUM ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9M64 Structure of SPIN90 dimer-Arp2/3 complexes-nucleated actin filaments (Doublet Complex) Deposited 2025-03-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain B 1–394（394 aa）
Chain b 1–394（394 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 12 MG MAGNESIUM ION × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

26 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ARP2_BOVIN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–390； UniProt 1–390

Actin-related protein 2/3 complex subunit 1A

OrganismNot specified

UniProt Q1JP79

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain C； UniProt 1–370 Not recorded Actin-related protein 3 × 1 （P61157） Actin-related protein 2 × 1 （A7MB62） Actin-related protein 2/3 complex subunit 2 × 1 （Q3MHR7） Actin-related protein 2/3 complex subunit 3 × 1 （Q3T035） Actin-related protein 2/3 complex subunit 4 × 1 （Q148J6） Actin-related protein 2/3 complex subunit 5 × 1 （Q3SYX9） WASP like actin nucleation promoting factor × 2 （A0A7J7WN29） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 9DLZ Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
7T5Q Cryo-EM Structure of a Transition State of Arp2/3 Complex Activation Deposited 2021-12-13 Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric
Chain C 1–370（370 aa）
Not recorded MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.40 Å
8TAH Cryo-EM structure of Cortactin-bound to Arp2/3 complex Deposited 2023-06-27 Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain C 1–370（370 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；10 mM imidazole pH 7.0, 50 mM KCl, 2 mM MgCl2, 1 mM EGTA
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.89 Å
9DLX Bovine Arp2/3 complex with N-WASP CA bound to Arp3 and Arp2-ArpC1 Deposited 2024-09-11 Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric
Chain C 1–370（370 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain C 1–370（370 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å

4 other PDB entries and 4 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ARC1A_BOVIN
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–370； UniProt 1–370

Actin-related protein 2/3 complex subunit 2

OrganismNot specified

UniProt Q3MHR7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain D； UniProt 1–285 Not recorded Actin-related protein 3 × 1 （P61157） Actin-related protein 2 × 1 （A7MB62） Actin-related protein 2/3 complex subunit 1A × 1 （Q1JP79） Actin-related protein 2/3 complex subunit 3 × 1 （Q3T035） Actin-related protein 2/3 complex subunit 4 × 1 （Q148J6） Actin-related protein 2/3 complex subunit 5 × 1 （Q3SYX9） WASP like actin nucleation promoting factor × 2 （A0A7J7WN29） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 9DLZ Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1K8K Crystal Structure of Arp2/3 Complex Deposited 2001-10-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 8000, KSCN, Hepes at pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.00 Å R-free 0.251
2P9I Crystal Structure of bovine Arp2/3 Complex co-crystallized with ADP and crosslinked with gluteraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded CA CALCIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.46 Å R-free 0.261
2P9K Crystal structure of bovine Arp2/3 complex co-crystallized with ATP and crosslinked with glutaraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；7.5% PEG 3350, 50mM HEPES, 100mM KSCN, 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.59 Å R-free 0.260
2P9L Crystal Structure of bovine Arp2/3 complex Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.65 Å R-free 0.266
2P9N Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；6% PEG 8000 100mM HEPES 100mM KSCN, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.85 Å R-free 0.272
2P9P Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.288
2P9S Structure of bovine Arp2/3 complex co-crystallized with ATP/Mg2+ Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded MG MAGNESIUM ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.68 Å R-free 0.261
2P9U Crystal structure of bovine Arp2/3 complex co-crystallized with AMP-PNP and calcium Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded CA CALCIUM ION × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.75 Å R-free 0.265
3DXK Structure of Bos Taurus Arp2/3 Complex with Bound Inhibitor CK0944636 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded N23 N-[2-(2-methyl-1H-indol-3-yl)ethyl]thiophene-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.262
3DXM Structure of Bos taurus Arp2/3 Complex with Bound Inhibitor CK0993548 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded N24 (2S)-2-(3-bromophenyl)-3-(5-chloro-2-hydroxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.85 Å R-free 0.258
3RSE Structural and biochemical characterization of two binding sites for nucleation promoting factor WASp-VCA on Arp2/3 complex Deposited 2011-05-02 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain D 1–300（300 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；100 mM HEPES 7.5, 8% PEG 8000, 200 mM KCl, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.65 Å R-free 0.259
3UKR Crystal structure of Bos taurus Arp2/3 complex with bound inhibitor CK-666 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded CKH 2-fluoro-N-[2-(2-methyl-1H-indol-3-yl)ethyl]benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1M Hepes (pH 7.5), 0.2M KSCN, 16% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.48 Å R-free 0.261
3UKU Structure of Arp2/3 complex with bound inhibitor CK-869 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；278 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.75 Å R-free 0.301
3ULE Structure of Bos taurus Arp2/3 complex with bound inhibitor CK-869 and ATP Deposited 2011-11-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.274
4JD2 Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF Deposited 2013-02-22 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain D 1–300（300 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.08 Å R-free 0.248
4XEI Orthorhombic isomorph of bovine Arp2/3 complex Deposited 2014-12-23 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277 K；Ethanol 10%, 1,4-butanediol 15%, 100 mM Tris 7.4
Resolution 3.87 Å R-free 0.329
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain D 1–300（300 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain W 1–300（300 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain D 1–300（300 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain K 1–300（300 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
7JPN Cryo-EM structure of Arpin-bound Arp2/3 complex Deposited 2020-08-09 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain D 1–300（300 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.24 Å
7T5Q Cryo-EM Structure of a Transition State of Arp2/3 Complex Activation Deposited 2021-12-13 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric
Chain D 1–300（300 aa）
Not recorded MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.40 Å
7TPT Single-particle Cryo-EM structure of Arp2/3 complex at branched-actin junction. Deposited 2022-01-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain D 1–300（300 aa）
Not recorded MG MAGNESIUM ION × 16 ADP ADENOSINE-5'-DIPHOSPHATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8TAH Cryo-EM structure of Cortactin-bound to Arp2/3 complex Deposited 2023-06-27 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain D 1–300（300 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；10 mM imidazole pH 7.0, 50 mM KCl, 2 mM MgCl2, 1 mM EGTA
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.89 Å
9DLX Bovine Arp2/3 complex with N-WASP CA bound to Arp3 and Arp2-ArpC1 Deposited 2024-09-11 Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric
Chain D 1–285（285 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain D 1–300（300 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9M5E Structure of SPIN90 dimer-Arp2/3 complex-nucleated actin filament (singlet complex) Deposited 2025-03-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric
Chain D 1–300（300 aa）
Not recorded MG MAGNESIUM ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9M64 Structure of SPIN90 dimer-Arp2/3 complexes-nucleated actin filaments (Doublet Complex) Deposited 2025-03-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain D 1–300（300 aa）
Chain d 1–300（300 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 12 MG MAGNESIUM ION × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

26 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ARPC2_BOVIN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D； PDBConstruct 1–285； UniProt 1–285

Actin-related protein 2/3 complex subunit 3

OrganismNot specified

UniProt Q3T035

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain E； UniProt 2–176 Not recorded Actin-related protein 3 × 1 （P61157） Actin-related protein 2 × 1 （A7MB62） Actin-related protein 2/3 complex subunit 1A × 1 （Q1JP79） Actin-related protein 2/3 complex subunit 2 × 1 （Q3MHR7） Actin-related protein 2/3 complex subunit 4 × 1 （Q148J6） Actin-related protein 2/3 complex subunit 5 × 1 （Q3SYX9） WASP like actin nucleation promoting factor × 2 （A0A7J7WN29） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 9DLZ Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1K8K Crystal Structure of Arp2/3 Complex Deposited 2001-10-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 8000, KSCN, Hepes at pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.00 Å R-free 0.251
2P9I Crystal Structure of bovine Arp2/3 Complex co-crystallized with ADP and crosslinked with gluteraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded CA CALCIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.46 Å R-free 0.261
2P9K Crystal structure of bovine Arp2/3 complex co-crystallized with ATP and crosslinked with glutaraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；7.5% PEG 3350, 50mM HEPES, 100mM KSCN, 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.59 Å R-free 0.260
2P9L Crystal Structure of bovine Arp2/3 complex Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.65 Å R-free 0.266
2P9N Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；6% PEG 8000 100mM HEPES 100mM KSCN, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.85 Å R-free 0.272
2P9P Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.288
2P9S Structure of bovine Arp2/3 complex co-crystallized with ATP/Mg2+ Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded MG MAGNESIUM ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.68 Å R-free 0.261
2P9U Crystal structure of bovine Arp2/3 complex co-crystallized with AMP-PNP and calcium Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded CA CALCIUM ION × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.75 Å R-free 0.265
3DXK Structure of Bos Taurus Arp2/3 Complex with Bound Inhibitor CK0944636 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded N23 N-[2-(2-methyl-1H-indol-3-yl)ethyl]thiophene-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.262
3DXM Structure of Bos taurus Arp2/3 Complex with Bound Inhibitor CK0993548 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded N24 (2S)-2-(3-bromophenyl)-3-(5-chloro-2-hydroxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.85 Å R-free 0.258
3RSE Structural and biochemical characterization of two binding sites for nucleation promoting factor WASp-VCA on Arp2/3 complex Deposited 2011-05-02 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain E 1–178（178 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；100 mM HEPES 7.5, 8% PEG 8000, 200 mM KCl, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.65 Å R-free 0.259
3UKR Crystal structure of Bos taurus Arp2/3 complex with bound inhibitor CK-666 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded CKH 2-fluoro-N-[2-(2-methyl-1H-indol-3-yl)ethyl]benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1M Hepes (pH 7.5), 0.2M KSCN, 16% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.48 Å R-free 0.261
3UKU Structure of Arp2/3 complex with bound inhibitor CK-869 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；278 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.75 Å R-free 0.301
3ULE Structure of Bos taurus Arp2/3 complex with bound inhibitor CK-869 and ATP Deposited 2011-11-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.274
4JD2 Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF Deposited 2013-02-22 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain E 1–178（178 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.08 Å R-free 0.248
4XEI Orthorhombic isomorph of bovine Arp2/3 complex Deposited 2014-12-23 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277 K；Ethanol 10%, 1,4-butanediol 15%, 100 mM Tris 7.4
Resolution 3.87 Å R-free 0.329
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain E 1–178（178 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain X 1–178（178 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain E 1–178（178 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain L 1–178（178 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
7JPN Cryo-EM structure of Arpin-bound Arp2/3 complex Deposited 2020-08-09 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain E 1–178（178 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.24 Å
7T5Q Cryo-EM Structure of a Transition State of Arp2/3 Complex Activation Deposited 2021-12-13 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric
Chain E 1–178（178 aa）
Not recorded MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.40 Å
7TPT Single-particle Cryo-EM structure of Arp2/3 complex at branched-actin junction. Deposited 2022-01-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain E 1–178（178 aa）
Not recorded MG MAGNESIUM ION × 16 ADP ADENOSINE-5'-DIPHOSPHATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8TAH Cryo-EM structure of Cortactin-bound to Arp2/3 complex Deposited 2023-06-27 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain E 1–178（178 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；10 mM imidazole pH 7.0, 50 mM KCl, 2 mM MgCl2, 1 mM EGTA
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.89 Å
9DLX Bovine Arp2/3 complex with N-WASP CA bound to Arp3 and Arp2-ArpC1 Deposited 2024-09-11 Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric
Chain E 2–176（175 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain E 1–178（178 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9M5E Structure of SPIN90 dimer-Arp2/3 complex-nucleated actin filament (singlet complex) Deposited 2025-03-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric
Chain E 1–178（178 aa）
Not recorded MG MAGNESIUM ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9M64 Structure of SPIN90 dimer-Arp2/3 complexes-nucleated actin filaments (Doublet Complex) Deposited 2025-03-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain E 1–178（178 aa）
Chain e 1–178（178 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 12 MG MAGNESIUM ION × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

26 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ARPC3_BOVIN
Isoform —
PDB entities 5
Chains and sequence ranges Author chain E； PDBConstruct 1–175； UniProt 2–176

Actin-related protein 2/3 complex subunit 4

OrganismNot specified

UniProt Q148J6

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain F； UniProt 2–168 Not recorded Actin-related protein 3 × 1 （P61157） Actin-related protein 2 × 1 （A7MB62） Actin-related protein 2/3 complex subunit 1A × 1 （Q1JP79） Actin-related protein 2/3 complex subunit 2 × 1 （Q3MHR7） Actin-related protein 2/3 complex subunit 3 × 1 （Q3T035） Actin-related protein 2/3 complex subunit 5 × 1 （Q3SYX9） WASP like actin nucleation promoting factor × 2 （A0A7J7WN29） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 9DLZ Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1K8K Crystal Structure of Arp2/3 Complex Deposited 2001-10-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 8000, KSCN, Hepes at pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.00 Å R-free 0.251
2P9I Crystal Structure of bovine Arp2/3 Complex co-crystallized with ADP and crosslinked with gluteraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded CA CALCIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.46 Å R-free 0.261
2P9K Crystal structure of bovine Arp2/3 complex co-crystallized with ATP and crosslinked with glutaraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；7.5% PEG 3350, 50mM HEPES, 100mM KSCN, 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.59 Å R-free 0.260
2P9L Crystal Structure of bovine Arp2/3 complex Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.65 Å R-free 0.266
2P9N Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；6% PEG 8000 100mM HEPES 100mM KSCN, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.85 Å R-free 0.272
2P9P Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.288
2P9S Structure of bovine Arp2/3 complex co-crystallized with ATP/Mg2+ Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded MG MAGNESIUM ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.68 Å R-free 0.261
2P9U Crystal structure of bovine Arp2/3 complex co-crystallized with AMP-PNP and calcium Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded CA CALCIUM ION × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.75 Å R-free 0.265
3DXK Structure of Bos Taurus Arp2/3 Complex with Bound Inhibitor CK0944636 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded N23 N-[2-(2-methyl-1H-indol-3-yl)ethyl]thiophene-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.262
3DXM Structure of Bos taurus Arp2/3 Complex with Bound Inhibitor CK0993548 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded N24 (2S)-2-(3-bromophenyl)-3-(5-chloro-2-hydroxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.85 Å R-free 0.258
3RSE Structural and biochemical characterization of two binding sites for nucleation promoting factor WASp-VCA on Arp2/3 complex Deposited 2011-05-02 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain F 1–168（168 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；100 mM HEPES 7.5, 8% PEG 8000, 200 mM KCl, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.65 Å R-free 0.259
3UKR Crystal structure of Bos taurus Arp2/3 complex with bound inhibitor CK-666 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded CKH 2-fluoro-N-[2-(2-methyl-1H-indol-3-yl)ethyl]benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1M Hepes (pH 7.5), 0.2M KSCN, 16% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.48 Å R-free 0.261
3UKU Structure of Arp2/3 complex with bound inhibitor CK-869 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；278 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.75 Å R-free 0.301
3ULE Structure of Bos taurus Arp2/3 complex with bound inhibitor CK-869 and ATP Deposited 2011-11-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.274
4JD2 Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF Deposited 2013-02-22 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain F 1–168（168 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.08 Å R-free 0.248
4XEI Orthorhombic isomorph of bovine Arp2/3 complex Deposited 2014-12-23 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277 K；Ethanol 10%, 1,4-butanediol 15%, 100 mM Tris 7.4
Resolution 3.87 Å R-free 0.329
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain F 1–168（168 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain Y 1–168（168 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain F 1–168（168 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain N 1–168（168 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
7JPN Cryo-EM structure of Arpin-bound Arp2/3 complex Deposited 2020-08-09 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain F 1–168（168 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.24 Å
7T5Q Cryo-EM Structure of a Transition State of Arp2/3 Complex Activation Deposited 2021-12-13 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric
Chain F 1–168（168 aa）
Not recorded MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.40 Å
7TPT Single-particle Cryo-EM structure of Arp2/3 complex at branched-actin junction. Deposited 2022-01-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain F 1–168（168 aa）
Not recorded MG MAGNESIUM ION × 16 ADP ADENOSINE-5'-DIPHOSPHATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
8TAH Cryo-EM structure of Cortactin-bound to Arp2/3 complex Deposited 2023-06-27 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain F 1–168（168 aa）
Not recorded MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7；10 mM imidazole pH 7.0, 50 mM KCl, 2 mM MgCl2, 1 mM EGTA
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.89 Å
9DLX Bovine Arp2/3 complex with N-WASP CA bound to Arp3 and Arp2-ArpC1 Deposited 2024-09-11 Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric
Chain F 2–168（167 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain F 1–168（168 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9M5E Structure of SPIN90 dimer-Arp2/3 complex-nucleated actin filament (singlet complex) Deposited 2025-03-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric
Chain F 1–168（168 aa）
Not recorded MG MAGNESIUM ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9M64 Structure of SPIN90 dimer-Arp2/3 complexes-nucleated actin filaments (Doublet Complex) Deposited 2025-03-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain F 1–168（168 aa）
Chain f 1–168（168 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 12 MG MAGNESIUM ION × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

26 other PDB entries and 28 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ARPC4_BOVIN
Isoform —
PDB entities 6
Chains and sequence ranges Author chain F； PDBConstruct 1–167； UniProt 2–168

Actin-related protein 2/3 complex subunit 5

OrganismNot specified

UniProt Q3SYX9

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain G； UniProt 7–151 Not recorded Actin-related protein 3 × 1 （P61157） Actin-related protein 2 × 1 （A7MB62） Actin-related protein 2/3 complex subunit 1A × 1 （Q1JP79） Actin-related protein 2/3 complex subunit 2 × 1 （Q3MHR7） Actin-related protein 2/3 complex subunit 3 × 1 （Q3T035） Actin-related protein 2/3 complex subunit 4 × 1 （Q148J6） WASP like actin nucleation promoting factor × 2 （A0A7J7WN29） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 9DLZ Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1K8K Crystal Structure of Arp2/3 Complex Deposited 2001-10-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；PEG 8000, KSCN, Hepes at pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298K
Resolution 2.00 Å R-free 0.251
2P9I Crystal Structure of bovine Arp2/3 Complex co-crystallized with ADP and crosslinked with gluteraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded CA CALCIUM ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.46 Å R-free 0.261
2P9K Crystal structure of bovine Arp2/3 complex co-crystallized with ATP and crosslinked with glutaraldehyde Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；278 K；7.5% PEG 3350, 50mM HEPES, 100mM KSCN, 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.59 Å R-free 0.260
2P9L Crystal Structure of bovine Arp2/3 complex Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.65 Å R-free 0.266
2P9N Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；6% PEG 8000 100mM HEPES 100mM KSCN, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.85 Å R-free 0.272
2P9P Crystal Structure of bovine Arp2/3 complex co-crystallized with ADP Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded CA CALCIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG 3350 50mM HEPES 100mM KSCN 10% Sucrose, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.288
2P9S Structure of bovine Arp2/3 complex co-crystallized with ATP/Mg2+ Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded MG MAGNESIUM ION × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.68 Å R-free 0.261
2P9U Crystal structure of bovine Arp2/3 complex co-crystallized with AMP-PNP and calcium Deposited 2007-03-26 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded CA CALCIUM ION × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；7.5% PEG3350 50mM HEPES 100mM KSCN 10% Sucrose, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.75 Å R-free 0.265
3DXK Structure of Bos Taurus Arp2/3 Complex with Bound Inhibitor CK0944636 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded N23 N-[2-(2-methyl-1H-indol-3-yl)ethyl]thiophene-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.70 Å R-free 0.262
3DXM Structure of Bos taurus Arp2/3 Complex with Bound Inhibitor CK0993548 Deposited 2008-07-24 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded N24 (2S)-2-(3-bromophenyl)-3-(5-chloro-2-hydroxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.85 Å R-free 0.258
3RSE Structural and biochemical characterization of two binding sites for nucleation promoting factor WASp-VCA on Arp2/3 complex Deposited 2011-05-02 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain G 1–151（151 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；100 mM HEPES 7.5, 8% PEG 8000, 200 mM KCl, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.65 Å R-free 0.259
3UKR Crystal structure of Bos taurus Arp2/3 complex with bound inhibitor CK-666 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded CKH 2-fluoro-N-[2-(2-methyl-1H-indol-3-yl)ethyl]benzamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；0.1M Hepes (pH 7.5), 0.2M KSCN, 16% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.48 Å R-free 0.261
3UKU Structure of Arp2/3 complex with bound inhibitor CK-869 Deposited 2011-11-09 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；278 K；8% PEG 8000, 50 mM HEPES, pH 7.5, 100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 278K
Resolution 2.75 Å R-free 0.301
3ULE Structure of Bos taurus Arp2/3 complex with bound inhibitor CK-869 and ATP Deposited 2011-11-10 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 C69 (2S)-2-(3-bromophenyl)-3-(2,4-dimethoxyphenyl)-1,3-thiazolidin-4-one × 1 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；277 K；8% PEG 8000, 50 mM HEPES, pH 7.5,100 mM KSCN, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.50 Å R-free 0.274
4JD2 Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF Deposited 2013-02-22 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain G 1–151（151 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.08 Å R-free 0.248
4XEI Orthorhombic isomorph of bovine Arp2/3 complex Deposited 2014-12-23 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；277 K；Ethanol 10%, 1,4-butanediol 15%, 100 mM Tris 7.4
Resolution 3.87 Å R-free 0.329
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain G 1–151（151 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
4XF2 Tetragonal structure of Arp2/3 complex Deposited 2014-12-25 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric
Chain Z 1–151（151 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；277 K；100 mM Tris 7.0, 15% ethanol
Resolution 5.00 Å R-free 0.303
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain G 1–151（151 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
6DEC Crystal structure of Bos taurus Arp2/3 complex binding with C-terminus of Homo sapiens SPIN90 Deposited 2018-05-11 Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain O 1–151（151 aa）
Not recorded CA CALCIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；50 mM HEPES, pH 7.5, 5% PEG3350, 50 mM L-Proline, 0.5 mM ATP, 0.5 mM calcium chloride, 1 mM DTT
Resolution 4.60 Å R-free 0.314
7T5Q Cryo-EM Structure of a Transition State of Arp2/3 Complex Activation Deposited 2021-12-13 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric
Chain G 1–151（151 aa）
Not recorded MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE；Grids were manually blotted for 3 seconds with Whatman 41 filter paper and manually plunged using a Leica EM CPC manual plunger.
Resolution 3.40 Å
7TPT Single-particle Cryo-EM structure of Arp2/3 complex at branched-actin junction. Deposited 2022-01-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric
Chain G 1–151（151 aa）
Not recorded MG MAGNESIUM ION × 16 ADP ADENOSINE-5'-DIPHOSPHATE × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
9DLX Bovine Arp2/3 complex with N-WASP CA bound to Arp3 and Arp2-ArpC1 Deposited 2024-09-11 Different construct Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric
Chain G 1–151（151 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.91 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric
Chain G 1–151（151 aa）
Not recorded ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
9M5E Structure of SPIN90 dimer-Arp2/3 complex-nucleated actin filament (singlet complex) Deposited 2025-03-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric
Chain G 1–151（151 aa）
Not recorded MG MAGNESIUM ION × 4 ADP ADENOSINE-5'-DIPHOSPHATE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9M64 Structure of SPIN90 dimer-Arp2/3 complexes-nucleated actin filaments (Doublet Complex) Deposited 2025-03-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric
Chain G 1–151（151 aa）
Chain g 1–151（151 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 12 MG MAGNESIUM ION × 10 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å

24 other PDB entries and 26 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ARPC5_BOVIN
Isoform —
PDB entities 7
Chains and sequence ranges Author chain G； PDBConstruct 1–145； UniProt 7–151

WASP like actin nucleation promoting factor

Homo sapiens

UniProt A0A7J7WN29

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 9 PDB declaration: nonameric（9） Consistent with protein copy count Chain H； UniProt 500–540 Chain I； UniProt 500–540 Not recorded Actin-related protein 3 × 1 （P61157） Actin-related protein 2 × 1 （A7MB62） Actin-related protein 2/3 complex subunit 1A × 1 （Q1JP79） Actin-related protein 2/3 complex subunit 2 × 1 （Q3MHR7） Actin-related protein 2/3 complex subunit 3 × 1 （Q3T035） Actin-related protein 2/3 complex subunit 4 × 1 （Q148J6） Actin-related protein 2/3 complex subunit 5 × 1 （Q3SYX9） ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY cryo-EM buffer：pH 7.4 cryo-EM vitrification conditions：Cryogen ETHANE Resolution 3.40 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name A0A7J7WN29_PIPKU
Isoform —
PDB entities 8
Chains and sequence ranges Author chain H； PDBConstruct 1–41； UniProt 500–540 Author chain I； PDBConstruct 1–41； UniProt 500–540

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 9dlz

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9dlz
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9dlz
Deposition date deposition_date2024-09-11
Structure title titleBovine Arp2/3 complex with N-WASP CA bound to Arp3
Keywords keywordsactin, arp 2-3 complex, N-WASP, nucleation promoting factor, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier45.86 Å
Radius of gyration Rg (electron density) rg_electron45.25 Å
Forward intensity I(0) i0700820000.00
Molecular weight molecular_weight219650.0 kDa
Excluded volume excluded_volume275290 ų
Envelope volume envelope_volume396420 ų
Hydration-shell volume shell_volume72006 ų
Envelope diameter envelope_diameter145.7 Å
Shell Rg shell_rg50.73 Å
Envelope Rg envelope_rg44.46 Å
Shape Rg shape_rg45.25 Å
Total Rg total_rg45.48 Å
Total atoms total_atoms15455
Residues n_residues1927
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax146.3 Å
Rg (real space) rg_real45.69 Å
Rg uncertainty (real space) rg_real_error1.15 Å
I(0) (real space) i0_real7.0080e+08
I(0) uncertainty (real space) i0_real_error1.2040e+07
Rg (reciprocal space) rg_reciprocal45.86 Å
I(0) (reciprocal space) i0_reciprocal701000000.0000
Solution quality estimate total_estimate0.9022
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary56.0 Å
Skewness Skewness skewness0.122
Kurtosis Kurtosis kurtosis-0.697
Angular range angular_range— – 0.1700 Å−1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha110900000.0000
Real-space data points n_real_points35
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.944; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.894
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (10)

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8. Citations (1)

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9. Files and Curves (10)