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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q3SYX9 New Search
25PDB entries
27Biological assembly
28chain/assembly records
Main Difference Dimensions in This Set
Different construct Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
1K8K Crystal Structure of Arp2/3 Complex Deposited 2001-10-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 2 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
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 Assembly 2 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
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 Assembly 1 Insufficient information Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 36 PDB declaration: 36-meric（36） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric（9） Consistent with protein count
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
9DLZ Bovine Arp2/3 complex with N-WASP CA bound to Arp3 Deposited 2024-09-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric（9） Consistent with protein count
Chain G 7–151（145 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 3.40 Å
9EAM Coronin-7 CA bound to Arp2/3 complex Deposited 2024-11-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 12 PDB declaration: 12-meric（12） Consistent with protein count
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 Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric（24） Consistent with protein count
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

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.