3aa1

Crystal structure of Actin capping protein in complex with the Cp-binding motif derived from CKIP-1

Method: X-RAY DIFFRACTION D_max: 94.4 Å Quality: REASONABLE

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1. Protein Identity and Related Structures Protein Identity & Related Structures

F-actin-capping protein subunit alpha-1

Gallus gallus

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 × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain A； UniProt 1–286	Not recorded	F-actin-capping protein subunit beta isoforms 1 and 2 × 1 （P14315） 23mer peptide from Pleckstrin homology domain-containing family O member 1 × 1 （Q53GL0） MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 2	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；17.5% PEG 400, 30MM BACL2, 100MM MES-NAOH, PH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.90 Å R-free 0.263

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 3AA1	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1IZN Crystal Structure of Actin Filament Capping Protein CapZ Deposited 2002-10-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–286（286 aa）	Not recorded	NO3 NITRATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG3350, magnesium nitrate, MES-NAOH, Jeffamine M-600, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 2.10 Å R-free 0.262
1IZN Crystal Structure of Actin Filament Capping Protein CapZ Deposited 2002-10-10	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain C 1–286（286 aa）	Not recorded	NO3 NITRATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG3350, magnesium nitrate, MES-NAOH, Jeffamine M-600, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 2.10 Å R-free 0.262
2KXP Solution NMR structure of V-1 bound to capping protein (CP) Deposited 2010-05-11	Different construct Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 7–281（275 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；305 K；Ionic strength (raw mmCIF value) 0.1；Pressure ambient NMR sample composition 0.35 mM [U-100% 15N; U-99% 2H] capping protein alpha1 subunit, 0.35 mM [U-100% 15N; U-99% 2H] capping protein beta1 subunit, 0.35 mM [U-99% 2H] V-1, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 0.35 mM [U-99% 2H] capping protein alpha1 subunit, 0.35 mM [U-99% 2H] capping protein beta1 subunit, 0.35 mM [U-100% 15N; U-99% 2H] V-1, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 0.35 mM [U-100% 15N; U-99% 2H] capping protein alpha1 subunit, 0.35 mM [U-100% 15N; U-99% 2H] capping protein beta1 subunit, 0.35 mM [U-99% 2H] M7C V-1, 90% H2O/10% D2O \| 90% H2O/10% D2O	Resolution not provided
2KZ7 Solution structure of the CARMIL CAH3a/b domain bound to capping protein (CP) Deposited 2010-06-12	Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；305 K；Ionic strength (raw mmCIF value) 100；Pressure ambient NMR sample composition 0.35 mM [U-99% 15N; U-80% 2H] CPalpha subunit, 0.35 mM [U-99% 15N; U-80% 2H] CPbeta subunit, 0.39 mM [U-2H] CARMIL CAH3a/b domain, 93% H2O/7% D2O \| 93% H2O/7% D2O NMR sample composition 0.35 mM [U-99% 15N; U-80% 2H] CARMIL CAH3a/b domain, 0.39 mM [U-2H] CPalpha subunit, 0.39 mM [U-2H] CPbeta subunit, 93% H2O/7% D2O \| 93% H2O/7% D2O NMR sample composition 0.35 mM [U-99% 15N; U-80% 2H] CPalpha subunit, 0.35 mM [U-99% 15N; U-80% 2H] CPbeta subunit, 0.39 mM [U-2H; spin labeled at 1 or 5 postions] CARMIL CAH3a/b domain, 93% H2O/7% D2O \| 93% H2O/7% D2O	Resolution not provided
3AA0 Crystal structure of Actin Capping Protein in complex with the Cp-binding motif derived from CARMIL Deposited 2009-11-11	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	CO3 CARBONATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；18% PEG 400, 40MM BACL2, 100MM MES-NAOH, PH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.70 Å R-free 0.239
3AA6 Crystal structure of Actin capping protein in complex with the Cp-binding motif derived from CD2AP Deposited 2009-11-11	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	BA BARIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；10% PEG 400, 20MM BACL2, 100MM MES-NAOH, PH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.90 Å R-free 0.238
3AA7 Crystal structure of Actin capping protein Deposited 2009-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–286（286 aa）	Not recorded	BA BARIUM ION × 1 MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；12.5% PEG 400, 20MM BACL2, 100MM MES-NAOH, PH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.90 Å R-free 0.261
3AAA Crystal Structure of Actin capping protein in complex with V-1 Deposited 2009-11-12	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–286（286 aa）	Not recorded	IPA ISOPROPYL ALCOHOL × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.35；293 K；10% PEG 4000, 20% ISOPROPANOL, 20MM EDTA, 0.1M TRIS-HCL, pH 8.35, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 2.20 Å R-free 0.237
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain C 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain E 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain G 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain I 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3LK2 Crystal structure of CapZ bound to the uncapping motif from CARMIL Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；10% w/v PEG 20000, 100mM MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 2.20 Å R-free 0.268
3LK3 Crystal structure of CapZ bound to the CPI and CSI uncapping motifs from CARMIL Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；0.2M KCl, 20% (w/v) PEG 3350 , pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.68 Å R-free 0.248
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 10 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain 1 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 11 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain 4 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 12 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain 7 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain D 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain G 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain J 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain M 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 6 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain P 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 7 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain S 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 8 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain V 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 9 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain Y 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
7DS2 Crystal structure of actin capping protein in complex with twinflin-1 C-terminus tail Deposited 2020-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；22.5% (w/v) PEG 400, 0.1M HEPES-NaOH (pH = 7.0)	Resolution 1.95 Å R-free 0.183
7DS3 Crystal structure of actin capping protein in complex with twinflin-2 C-terminus tail Deposited 2020-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；5% (w/v) PEG 3350, 50mM Tris-HCl (pH = 7.0)	Resolution 2.09 Å R-free 0.251
7DS4 Crystal structure of actin capping protein in complex with twinflin-1 C-terminus tail F323K mutant Deposited 2020-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；5% (w/v) PEG 3350, 5% (v/v) ethanol, 50mM Tris-HCl (pH = 7.0)	Resolution 1.85 Å R-free 0.259
7DS6 Crystal structure of actin capping protein in complex with twinflin-1/CD2AP CPI chimera peptide (TWN-CDC) Deposited 2020-12-30	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；5% (w/v) PEG 3350, 5% (v/v) ethanol, 50mM Tris-HCl (pH = 7.0)	Resolution 1.69 Å R-free 0.253
7DS8 Crystal structure of actin capping protein in complex with twinflin-1/CD2AP CPI chimera peptide (CDN-TWC) Deposited 2020-12-30	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；4% (w/v) PEG 3350, 50mM Tris-HCl (pH = 7.0)	Resolution 1.95 Å R-free 0.233
7DSA Crystal structure of actin capping protein in complex with V-1 (space group P62) Deposited 2020-12-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	MG MAGNESIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；20% (w/v) PEG 3350, 0.2M Magnesium Acetate	Resolution 2.80 Å R-free 0.254
7DSB Crystal structure of actin capping protein in complex with V-1 and twinfilin C-terminal tail Deposited 2020-12-30	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–286（286 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；10% (w/v) PEG 3350, 5% (v/v) isopropanol, 0.1M HEPES-NaOH (pH = 7.5)	Resolution 2.44 Å R-free 0.248
9BLI Crystal structure of Actin capping protein in complex with a fragment of Legionella pneumophila RavB Deposited 2024-04-30	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–286（286 aa）	Not recorded	FMT FORMIC ACID × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；10 mM Tris pH 8.0, 0.2 M ammonium formate, 0.15 M NaCl, 21% w/v PEG 3350, 30% ethylene glycol	Resolution 2.00 Å R-free 0.208

19 other PDB entries and 35 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	CAZA1_CHICK
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–286； UniProt 1–286

F-actin-capping protein subunit beta isoforms 1 and 2

Gallus gallus

UniProt P14315

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 × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain B； UniProt 1–244	Mutation：residues 244-277 deletion mutation	F-actin-capping protein subunit alpha-1 × 1 （P13127） 23mer peptide from Pleckstrin homology domain-containing family O member 1 × 1 （Q53GL0） MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 2	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；17.5% PEG 400, 30MM BACL2, 100MM MES-NAOH, PH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.90 Å R-free 0.263

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 3AA1	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1IZN Crystal Structure of Actin Filament Capping Protein CapZ Deposited 2002-10-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 1–277（277 aa）	Not recorded	NO3 NITRATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG3350, magnesium nitrate, MES-NAOH, Jeffamine M-600, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 2.10 Å R-free 0.262
1IZN Crystal Structure of Actin Filament Capping Protein CapZ Deposited 2002-10-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain D 1–277（277 aa）	Not recorded	NO3 NITRATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG3350, magnesium nitrate, MES-NAOH, Jeffamine M-600, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 2.10 Å R-free 0.262
2KXP Solution NMR structure of V-1 bound to capping protein (CP) Deposited 2010-05-11	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 2–271（270 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；305 K；Ionic strength (raw mmCIF value) 0.1；Pressure ambient NMR sample composition 0.35 mM [U-100% 15N; U-99% 2H] capping protein alpha1 subunit, 0.35 mM [U-100% 15N; U-99% 2H] capping protein beta1 subunit, 0.35 mM [U-99% 2H] V-1, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 0.35 mM [U-99% 2H] capping protein alpha1 subunit, 0.35 mM [U-99% 2H] capping protein beta1 subunit, 0.35 mM [U-100% 15N; U-99% 2H] V-1, 90% H2O/10% D2O \| 90% H2O/10% D2O NMR sample composition 0.35 mM [U-100% 15N; U-99% 2H] capping protein alpha1 subunit, 0.35 mM [U-100% 15N; U-99% 2H] capping protein beta1 subunit, 0.35 mM [U-99% 2H] M7C V-1, 90% H2O/10% D2O \| 90% H2O/10% D2O	Resolution not provided
2KZ7 Solution structure of the CARMIL CAH3a/b domain bound to capping protein (CP) Deposited 2010-06-12	Different construct Different mutation/modification Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–277（277 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 6.5；305 K；Ionic strength (raw mmCIF value) 100；Pressure ambient NMR sample composition 0.35 mM [U-99% 15N; U-80% 2H] CPalpha subunit, 0.35 mM [U-99% 15N; U-80% 2H] CPbeta subunit, 0.39 mM [U-2H] CARMIL CAH3a/b domain, 93% H2O/7% D2O \| 93% H2O/7% D2O NMR sample composition 0.35 mM [U-99% 15N; U-80% 2H] CARMIL CAH3a/b domain, 0.39 mM [U-2H] CPalpha subunit, 0.39 mM [U-2H] CPbeta subunit, 93% H2O/7% D2O \| 93% H2O/7% D2O NMR sample composition 0.35 mM [U-99% 15N; U-80% 2H] CPalpha subunit, 0.35 mM [U-99% 15N; U-80% 2H] CPbeta subunit, 0.39 mM [U-2H; spin labeled at 1 or 5 postions] CARMIL CAH3a/b domain, 93% H2O/7% D2O \| 93% H2O/7% D2O	Resolution not provided
3AA0 Crystal structure of Actin Capping Protein in complex with the Cp-binding motif derived from CARMIL Deposited 2009-11-11	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Mutation：residues 244-277 deletion mutation	CO3 CARBONATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；18% PEG 400, 40MM BACL2, 100MM MES-NAOH, PH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.70 Å R-free 0.239
3AA6 Crystal structure of Actin capping protein in complex with the Cp-binding motif derived from CD2AP Deposited 2009-11-11	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Mutation：residues 244-277 deletion mutation	BA BARIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；10% PEG 400, 20MM BACL2, 100MM MES-NAOH, PH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.90 Å R-free 0.238
3AA7 Crystal structure of Actin capping protein Deposited 2009-11-11	Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 1–244（244 aa）	Mutation：residues 244-277 deletion mutation	BA BARIUM ION × 1 MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；12.5% PEG 400, 20MM BACL2, 100MM MES-NAOH, PH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.90 Å R-free 0.261
3AAA Crystal Structure of Actin capping protein in complex with V-1 Deposited 2009-11-12	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 1–277（277 aa）	Not recorded	IPA ISOPROPYL ALCOHOL × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.35；293 K；10% PEG 4000, 20% ISOPROPANOL, 20MM EDTA, 0.1M TRIS-HCL, pH 8.35, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 2.20 Å R-free 0.237
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain D 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain F 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain H 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3AAE Crystal structure of Actin capping protein in complex with CARMIL fragment Deposited 2009-11-16	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain J 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；14% PEG 3350, 180MM TRI-AMMONIUM CITRATE, 100MM MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 3.30 Å R-free 0.271
3LK2 Crystal structure of CapZ bound to the uncapping motif from CARMIL Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–243（243 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；10% w/v PEG 20000, 100mM MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 2.20 Å R-free 0.268
3LK3 Crystal structure of CapZ bound to the CPI and CSI uncapping motifs from CARMIL Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；0.2M KCl, 20% (w/v) PEG 3350 , pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.68 Å R-free 0.248
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 10 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain 2 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 11 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain 5 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 12 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain 8 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain E 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain H 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain K 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain N 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 6 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain Q 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 7 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain T 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 8 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain W 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
3LK4 Crystal structure of CapZ bound to the uncapping motif from CD2AP Deposited 2010-01-27	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 9 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain Z 1–277（277 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；30% PEG 400, 0.1M MES, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 1.99 Å R-free 0.272
7DS2 Crystal structure of actin capping protein in complex with twinflin-1 C-terminus tail Deposited 2020-12-30	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；22.5% (w/v) PEG 400, 0.1M HEPES-NaOH (pH = 7.0)	Resolution 1.95 Å R-free 0.183
7DS3 Crystal structure of actin capping protein in complex with twinflin-2 C-terminus tail Deposited 2020-12-30	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；5% (w/v) PEG 3350, 50mM Tris-HCl (pH = 7.0)	Resolution 2.09 Å R-free 0.251
7DS4 Crystal structure of actin capping protein in complex with twinflin-1 C-terminus tail F323K mutant Deposited 2020-12-30	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；5% (w/v) PEG 3350, 5% (v/v) ethanol, 50mM Tris-HCl (pH = 7.0)	Resolution 1.85 Å R-free 0.259
7DS6 Crystal structure of actin capping protein in complex with twinflin-1/CD2AP CPI chimera peptide (TWN-CDC) Deposited 2020-12-30	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；5% (w/v) PEG 3350, 5% (v/v) ethanol, 50mM Tris-HCl (pH = 7.0)	Resolution 1.69 Å R-free 0.253
7DS8 Crystal structure of actin capping protein in complex with twinflin-1/CD2AP CPI chimera peptide (CDN-TWC) Deposited 2020-12-30	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；4% (w/v) PEG 3350, 50mM Tris-HCl (pH = 7.0)	Resolution 1.95 Å R-free 0.233
7DSA Crystal structure of actin capping protein in complex with V-1 (space group P62) Deposited 2020-12-30	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Not recorded	MG MAGNESIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；20% (w/v) PEG 3350, 0.2M Magnesium Acetate	Resolution 2.80 Å R-free 0.254
7DSB Crystal structure of actin capping protein in complex with V-1 and twinfilin C-terminal tail Deposited 2020-12-30	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–244（244 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；293 K；10% (w/v) PEG 3350, 5% (v/v) isopropanol, 0.1M HEPES-NaOH (pH = 7.5)	Resolution 2.44 Å R-free 0.248
9BLI Crystal structure of Actin capping protein in complex with a fragment of Legionella pneumophila RavB Deposited 2024-04-30	Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–244（244 aa）	Not recorded	FMT FORMIC ACID × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；10 mM Tris pH 8.0, 0.2 M ammonium formate, 0.15 M NaCl, 21% w/v PEG 3350, 30% ethylene glycol	Resolution 2.00 Å R-free 0.208

19 other PDB entries and 35 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	CAPZB_CHICK
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–244； UniProt 1–244

23mer peptide from Pleckstrin homology domain-containing family O member 1

OrganismNot specified

UniProt Q53GL0

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 × 3 PDB declaration: trimeric（3） Consistent with protein copy count	Chain C； UniProt 148–170	Fragment：CP-BINDING MOTIF, recidues 148-170	F-actin-capping protein subunit alpha-1 × 1 （P13127） F-actin-capping protein subunit beta isoforms 1 and 2 × 1 （P14315） MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 2	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 6；293 K；17.5% PEG 400, 30MM BACL2, 100MM MES-NAOH, PH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K	Resolution 1.90 Å R-free 0.263

Other States of the Same Protein in the Database

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

View Construct and Data Evidence

UniProt name	PKHO1_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–23； UniProt 148–170

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

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	3aa1
Deposition date deposition_date	2009-11-11
Structure title title	Crystal structure of Actin capping protein in complex with the Cp-binding motif derived from CKIP-1
Keywords keywords	;ACTIN CAPPING PROTEIN, BARBED END REGULATION, CARMIL FAMILY PROTEIN, CONFORMATIONAL CHANGE, CELL MOTILITY, Actin capping, Actin-binding, Cytoskeleton, Cell membrane, Tumor suppressor, PROTEIN BINDING ;; PROTEIN BINDING
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	27.85 Å
Radius of gyration Rg (electron density) rg_electron	27.13 Å
Forward intensity I(0) i0	64601800.00
Molecular weight molecular_weight	61463.0 kDa
Excluded volume excluded_volume	76316 Å³
Envelope volume envelope_volume	93779 Å³
Hydration-shell volume shell_volume	29557 Å³
Envelope diameter envelope_diameter	96.5 Å
Shell Rg shell_rg	33.78 Å
Envelope Rg envelope_rg	27.42 Å
Shape Rg shape_rg	27.12 Å
Total Rg total_rg	27.82 Å
Total atoms total_atoms	4328
Residues n_residues	535
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	94.4 Å
Rg (real space) rg_real	27.99 Å
Rg uncertainty (real space) rg_real_error	0.70 Å
I(0) (real space) i0_real	6.4600e+07
I(0) uncertainty (real space) i0_real_error	9.4080e+05
Rg (reciprocal space) rg_reciprocal	27.95 Å
I(0) (reciprocal space) i0_reciprocal	64600000.0000
Solution quality estimate total_estimate	0.6793
Solution quality rating solution_quality	REASONABLE a REASONABLE solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	29.8 Å
Skewness Skewness skewness	0.473
Kurtosis Kurtosis kurtosis	-0.288
Angular range angular_range	— – 0.2850 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	22640000.0000
Real-space data points n_real_points	58
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.808; Stabil: 1.000; Sysdev: 0.177; Positv: 1.000; Valcen: 0.925; Smooth: 0.947

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Description description	F-actin-capping protein subunit alpha-1
Molecular weight formula_weight	33001.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	4788

MADFEDRVSDEEKVRIAAKFITHAPPGEFNEVFNDVRLLLNNDNLLREGAAHAFAQYNMDQFTPVKIEGYDDQVLITEHGDLGNGRFLDPRNKISFKFDHLRKEASDPQPEDTESALKQWRDACDSALRAYVKDHYPNGFCTVYGKSIDGQQTIIACIESHQFQPKNFWNGRWRSEWKFTITPPTAQVAAVLKIQVHYYEDGNVQLVSHKDIQDSVQVSSDVQTAKEFIKIIENAENEYQTAISENYQTMSDTTFKALRRQLPVTRTKIDWNKILSYKIGKEMQNA

来源 Source

来源生物 organism	Gallus gallus
通用名 common_name	Chicken
NCBI Class编号 ncbi_taxonomy_id	9031
宿主生物 host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	F-actin-capping protein subunit beta isoforms 1 and 2
Molecular weight formula_weight	27473.1 kDa
Mutation mutation	residues 244-277 deletion mutation
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

MSDQQLDCALDLMRRLPPQQIEKNLSDLIDLVPSLCEDLLSSVDQPLKIARDKVVGKDYLLCDYNRDGDSYRSPWSNKYDPPLEDGAMPSARLRKLEVEANNAFDQYRDLYFEGGVSSVYLWDLDHGFAGVILIKKAGDGSKKIKGCWDSIHVVEVQEKSSGRTAHYKLTSTVMLWLQTNKTGSGTMNLGGSLTRQMEKDETVSDSSPHIANIGRLVEDMENKIRSTLNEIYFGKTKDIVNGLR

来源 Source

来源生物 organism	Gallus gallus
通用名 common_name	Chicken
NCBI Class编号 ncbi_taxonomy_id	9031
宿主生物 host_organism	Escherichia coli

Entity 3 Entity 3 polymer

Description description	23mer peptide from Pleckstrin homology domain-containing family O member 1
Molecular weight formula_weight	2709.1 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

SYLAHPTRDRAKIQHSRRPPTRG

Entity 4 Entity 4 non-polymer

Description description	2-(N-MORPHOLINO)-ETHANESULFONIC ACID
Molecular weight formula_weight	195.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	379

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7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d3aa1a_
Class class	e — Multi-domain proteins (alpha and beta)
Fold Fold fold	e.43 — Subunits of heterodimeric actin filament capping protein Capz
Superfamily Superfamily superfamily	e.43.1 — Subunits of heterodimeric actin filament capping protein Capz
Family Family family	e.43.1.1 — Capz alpha-1 subunit

CATH v4.4 (4 domains)

Domain ID domain_id	3aa1A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1140 — Ribosomal protein S3 C-terminal domain
Homologous superfamily homologous superfamily	60 — F-actin capping protein, alpha subunit

Domain ID domain_id	3aa1A02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1150 — Aspartate Aminotransferase, domain 1
Homologous superfamily homologous superfamily	210 — F-actin capping protein, beta subunit

Domain ID domain_id	3aa1B01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily	570 — F-actin capping protein, alpha/beta subunit, N-terminal domain

Domain ID domain_id	3aa1B02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1150 — Aspartate Aminotransferase, domain 1
Homologous superfamily homologous superfamily	210 — F-actin capping protein, beta subunit

▶

8. Citations (1)

▶

Unit-cell length a length_a	57.315 Å
Unit-cell length b length_b	66.298 Å
Unit-cell length c length_c	136.666 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.900 Å
Low-resolution limit resolution_low	43.360 Å
R factor r_factor	0.2157
R_work r_work	0.2131
R_free r_free	0.2630

fit	/app/data/saxs_computation/aa/3aa1/3aa1.fit
pddf	/app/data/pr_computation/aa/3aa1/3aa1.pr.out
profile	/app/data/saxs_computation/aa/3aa1/3aa1.dat

Crystal structure of Actin capping protein in complex with the Cp-binding motif derived from CKIP-1

1. Protein Identity and Related Structures Protein Identity & Related Structures

F-actin-capping protein subunit alpha-1

State in the Current Structure

Other States of the Same Protein in the Database

F-actin-capping protein subunit beta isoforms 1 and 2

State in the Current Structure

Other States of the Same Protein in the Database

23mer peptide from Pleckstrin homology domain-containing family O member 1

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

6. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (1 domains)

CATH v4.4 (4 domains)

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)