SAXSdb — 9pue

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

AP-2 complex subunit alpha-2

Mus musculus

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 × 2 PDB declaration: dimeric（2） Consistent with protein copy count	Chain A； UniProt 695–938	Not recorded	Coiled-coil domain-containing protein 32 × 1 （Q8BS39）	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；40% isopropanol, 100 mM imidazole pH 6.5, 15% PEG 8000	Resolution 1.91 Å R-free 0.230

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 9PUE	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1B9K ALPHA-ADAPTIN APPENDAGE DOMAIN, FROM CLATHRIN ADAPTOR AP2 Deposited 1999-02-11	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 701–938（238 aa） Fragment：APPENDAGE DOMAIN	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions pH 6；20% PEG 4000, 10% ISOPROPANOL, 100MM NA CITRATE PH 6.0, 10MM DTT, 6MG/ML PROTEIN	Resolution 1.90 Å R-free 0.221
1KY6 AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE IN COMPLEX WITH EPSIN DPW PEPTIDE Deposited 2002-02-03	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 701–938（238 aa） Fragment：C-TERMINAL APPENDAGE (EAR) RESIDUES 701-938	Not recorded	SO4 SULFATE ION × 1	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.00 Å R-free 0.245
1KY7 THE AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE IN COMPLEX WITH AMPHIPHYSIN FXDXF Deposited 2002-02-03	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 701–938（238 aa） Fragment：C-TERMINAL APPENDAGE (EAR) RESIDUES 701-938	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.15 Å R-free 0.252
1KYD AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE IN COMPLEX WITH EPSIN DPW PEPTIDE Deposited 2002-02-04	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 701–938（238 aa） Fragment：C-TERMINAL APPENDAGE (EAR), RESIDUES 701-938	Not recorded	SO4 SULFATE ION × 1	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.00 Å R-free 0.228
1KYF AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE IN COMPLEX WITH EPS15 DPF PEPTIDE Deposited 2002-02-04	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 701–938（238 aa） Fragment：C-TERMINAL APPENDAGE (EAR) RESIDUES 701-938	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 1.22 Å R-free 0.211
1KYU AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE IN COMPLEX WITH EPS15 DPF PEPTIDE Deposited 2002-02-05	Different construct Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 701–938（238 aa） Fragment：C-TERMINAL APPENDAGE (EAR) RESIDUES 701-938	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 1.80 Å R-free 0.223
1QTP CRYSTAL STRUCTURE OF THE AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE Deposited 1999-06-28	Different construct Different mutation/modification Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 692–938（247 aa） Fragment：C-TERMINAL APPENDAGE (EAR) RESIDUES 701-938	Mutation：SELENOMETHIONINE SUBSTITUTED PROTEIN Non-standard monomer：Yes (specific site not provided by mmCIF)	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；293 K；1.5 M MAGNESIUM SULFATE, 100 MM MES, 10MM SPERMINE TETRA-HCL, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.60 Å R-free 0.211
1QTS CRYSTAL STRUCTURE OF THE AP-2 CLATHRIN ADAPTOR ALPHA-APPENDAGE Deposited 1999-06-29	Different construct Different oligomeric state Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 692–938（247 aa） Fragment：C-TERMINAL APPENDAGE (EAR) RESIDUES 701-938	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.9；293 K；1.3 M AMMONIUM SULFATE, 80 MM HEPES, 8% DIOXANE, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K	Resolution 1.40 Å R-free 0.209
1W80 Crystal structure of the alpha-adaptin appendage domain, from the AP2 adaptor complex, bound to 2 peptides from Synaptojanin170 Deposited 2004-09-14	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 695–938（244 aa） Fragment：APPENDAGE DOMAIN, RESIDUES 695-938	Not recorded	BEN BENZAMIDINE × 1 CO3 CARBONATE ION × 3 DTD DITHIANE DIOL × 1 SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 6.5；1.2M AMMONIUM SULFATE, 3% ISOPROPANOL, 0.05M SODIUM CITRATE, pH 6.50	Resolution 1.90 Å R-free 0.224
2JKR AP2 CLATHRIN ADAPTOR CORE with Dileucine peptide RM(phosphoS)QIKRLLSE Deposited 2008-08-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 1–271（271 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620 Chain A 272–620（349 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620	Not recorded	SO4 SULFATE ION × 14	X-RAY DIFFRACTION X-ray crystallization conditions pH 6.5；1.7-2.2M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH6 .5 AND 5MM DTT FROM A MIXTURE OF 10MG/ML AP2 CORE AND 7MG/ML PEPTIDE. CRYOPROTECTED WITH 1.8-2.3M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH 6.5, 17% GLYCEROL AND 7MG/ ML CD4 DILEUCINE PEPTIDE	Resolution 2.98 Å R-free 0.260
2JKR AP2 CLATHRIN ADAPTOR CORE with Dileucine peptide RM(phosphoS)QIKRLLSE Deposited 2008-08-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain L 1–271（271 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620 Chain L 272–620（349 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620	Not recorded	SO4 SULFATE ION × 17	X-RAY DIFFRACTION X-ray crystallization conditions pH 6.5；1.7-2.2M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH6 .5 AND 5MM DTT FROM A MIXTURE OF 10MG/ML AP2 CORE AND 7MG/ML PEPTIDE. CRYOPROTECTED WITH 1.8-2.3M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH 6.5, 17% GLYCEROL AND 7MG/ ML CD4 DILEUCINE PEPTIDE	Resolution 2.98 Å R-free 0.260
2JKT AP2 CLATHRIN ADAPTOR CORE with CD4 Dileucine peptide RM(phosphoS) EIKRLLSE Q to E mutant Deposited 2008-08-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 1–271（271 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620 Chain A 272–620（349 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620	Not recorded	SO4 SULFATE ION × 15	X-RAY DIFFRACTION X-ray crystallization conditions pH 6.5；1.7-2.2M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH6 .5 AND 5MM DTT FROM A MIXTURE OF 10MG/ML AP2 CORE AND 7MG/ML PEPTIDE. CRYOPROTECTED WITH 1.8-2.3M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH 6.5, 17% GLYCEROL AND 7MG/ ML CD4 DILEUCINE PEPTIDE	Resolution 3.40 Å R-free 0.256
2JKT AP2 CLATHRIN ADAPTOR CORE with CD4 Dileucine peptide RM(phosphoS) EIKRLLSE Q to E mutant Deposited 2008-08-29	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain L 1–271（271 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620 Chain L 272–620（349 aa） Fragment：ALPHA CHAIN, RESIDUES 1-620	Not recorded	SO4 SULFATE ION × 16	X-RAY DIFFRACTION X-ray crystallization conditions pH 6.5；1.7-2.2M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH6 .5 AND 5MM DTT FROM A MIXTURE OF 10MG/ML AP2 CORE AND 7MG/ML PEPTIDE. CRYOPROTECTED WITH 1.8-2.3M AMMONIUM SULPHATE, 100MM SODIUM CITRATE PH 6.5, 17% GLYCEROL AND 7MG/ ML CD4 DILEUCINE PEPTIDE	Resolution 3.40 Å R-free 0.256
2VJ0 Crystal structure of the alpha-adaptin appendage domain, from the AP2 adaptor complex, in complex with an FXDNF peptide from amphiphysin1 and a WVXF peptide from synaptojanin P170 Deposited 2007-12-06	Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 693–938（246 aa） Fragment：APPENDAGE DOMAIN, RESIDUES 693-938	Not recorded	BEN BENZAMIDINE × 1 DTD DITHIANE DIOL × 1 SO4 SULFATE ION × 3 CL CHLORIDE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 6.5；1.2M AMMONIUM SULPHATE, 3% ISOPROPANOL AND 0.05M SODIUM CITRATE PH 6.5	Resolution 1.60 Å R-free 0.208
7OHI FCHO1-peptide-AP2 alpha ear complex Deposited 2021-05-11	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 695–938（244 aa）	Not recorded	SO4 SULFATE ION × 5 MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；289 K；1.6M Magnesium sulfate heptahydrate 0.1M MES pH 6.5. The crystal were subsequently cryo-protected with ~20% glycerol final.	Resolution 1.41 Å R-free 0.215
7RW8 AP2 bound to heparin in the closed conformation Deposited 2021-08-19	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–620（620 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；Blot force -10, 4 second blot, 4 uL sample	Resolution 3.50 Å
7RW9 AP2 bound to heparin in the bowl conformation Deposited 2021-08-19	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–620（620 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；Blot force -10, 4 second blot, 4 uL sample	Resolution 3.90 Å
7RWA AP2 bound to heparin and Tgn38 tyrosine cargo peptide Deposited 2021-08-19	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric	Chain A 1–620（620 aa） Chain a 1–620（620 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；Blot force -10, 4 second blot, 4 uL sample	Resolution 4.70 Å
7RWB AP2 bound to the APA domain of SGIP in the presence of heparin Deposited 2021-08-19	Different construct Different mutation/modification Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric	Chain A 1–620（620 aa） Chain a 1–620（620 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；Blot force -10, 4 second blot, 4 uL sample	Resolution 3.90 Å
7RWC AP2 bound to the APA domain of SGIP and heparin; partial signal subtraction and symmetry expansion Deposited 2021-08-19	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 1–620（620 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；Blot force -10, 4 second blot, 4 uL sample	Resolution 3.80 Å
8T1O AP2 bound to MSP2N2 nanodisc with Tgn38 cargo peptide; composite map Deposited 2023-06-02	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 1–620（620 aa）	Not recorded	PIO [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate × 1	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4；20 mM HEPES pH 7.4, 100 mM NaCl cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；Two applications of sample.	Resolution 3.30 Å
9PPP Structure of Alpha Appendage of AP2 bound to the extended FxDxF motif derived of CCDC32 Deposited 2025-07-21	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 695–938（244 aa）	Not recorded	1PE PENTAETHYLENE GLYCOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；100 mM SPG pH 8.0, 25% PEG 1500	Resolution 2.10 Å R-free 0.205
9PPP Structure of Alpha Appendage of AP2 bound to the extended FxDxF motif derived of CCDC32 Deposited 2025-07-21	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 695–938（244 aa）	Not recorded	1PE PENTAETHYLENE GLYCOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；100 mM SPG pH 8.0, 25% PEG 1500	Resolution 2.10 Å R-free 0.205
9PWA Closed AP-2 clathrin adaptor complex in solution Deposited 2025-08-04	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–620（620 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 2.55 Å
9PWB Structure of AP-2 bound to the dileucine motif of CCDC32; combined map Deposited 2025-08-04	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 9–620（612 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 2.64 Å
9PWC Composite structure of AP-2 bound to the dileucine motif and WxxPhi motif of CCDC32 Deposited 2025-08-04	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain A 1–620（620 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.00 Å

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

View Construct and Data Evidence

UniProt name	AP2A2_MOUSE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–244； UniProt 695–938

Coiled-coil domain-containing protein 32

OrganismNot specified

UniProt Q8BS39

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 × 2 PDB declaration: dimeric（2） Consistent with protein copy count	Chain P； UniProt 37–45	Not recorded	AP-2 complex subunit alpha-2 × 1 （P17427）	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, SITTING DROP；pH 6.5；298 K；40% isopropanol, 100 mM imidazole pH 6.5, 15% PEG 8000	Resolution 1.91 Å R-free 0.230

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 9PUE	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
9PPP Structure of Alpha Appendage of AP2 bound to the extended FxDxF motif derived of CCDC32 Deposited 2025-07-21	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain P 17–44（28 aa）	Not recorded	1PE PENTAETHYLENE GLYCOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；100 mM SPG pH 8.0, 25% PEG 1500	Resolution 2.10 Å R-free 0.205
9PPP Structure of Alpha Appendage of AP2 bound to the extended FxDxF motif derived of CCDC32 Deposited 2025-07-21	Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain Q 17–44（28 aa）	Not recorded	1PE PENTAETHYLENE GLYCOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；100 mM SPG pH 8.0, 25% PEG 1500	Resolution 2.10 Å R-free 0.205
9PWB Structure of AP-2 bound to the dileucine motif of CCDC32; combined map Deposited 2025-08-04	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 151–161（11 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 2.64 Å
9PWC Composite structure of AP-2 bound to the dileucine motif and WxxPhi motif of CCDC32 Deposited 2025-08-04	Different construct Different oligomeric state Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric	Chain C 1–179（179 aa）	Not recorded	No recorded non-water small molecule	ELECTRON MICROSCOPY cryo-EM buffer pH 7.6 cryo-EM vitrification conditions Cryogen ETHANE-PROPANE	Resolution 3.00 Å

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

View Construct and Data Evidence

UniProt name	CCD32_MOUSE
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain P； PDBConstruct 1–9； UniProt 37–45

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	9pue
Deposition date deposition_date	2025-07-30
最后修订 last_revision	2026-04-08
Structure title title	Structure of Alpha Appendage of AP2 bound to the FxDxF motif derived of CCDC32
Keywords keywords	Clathin, AP-2 adaptor complex, assembly chaperone, ENDOCYTOSIS; ENDOCYTOSIS
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	21.37 Å
Radius of gyration Rg (electron density) rg_electron	20.40 Å
Forward intensity I(0) i0	14178600.00
Molecular weight molecular_weight	28499.0 kDa
Excluded volume excluded_volume	35761 Å³
Envelope volume envelope_volume	41829 Å³
Hydration-shell volume shell_volume	18012 Å³
Envelope diameter envelope_diameter	72.5 Å
Shell Rg shell_rg	26.11 Å
Envelope Rg envelope_rg	20.72 Å
Shape Rg shape_rg	20.42 Å
Total Rg total_rg	21.18 Å
Total atoms total_atoms	2006
Residues n_residues	253
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	72.4 Å
Rg (real space) rg_real	21.48 Å
Rg uncertainty (real space) rg_real_error	0.72 Å
I(0) (real space) i0_real	1.4180e+07
I(0) uncertainty (real space) i0_real_error	2.1540e+05
Rg (reciprocal space) rg_reciprocal	21.46 Å
I(0) (reciprocal space) i0_reciprocal	14180000.0000
Solution quality estimate total_estimate	0.8622
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	21.3 Å
Skewness Skewness skewness	0.498
Kurtosis Kurtosis kurtosis	-0.206
Angular range angular_range	— – 0.3700 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	3480000.0000
Real-space data points n_real_points	69
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.773; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.904; Smooth: 0.983

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	AP-2 complex subunit alpha-2
Molecular weight formula_weight	27509.3 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	2212

APLAPGSEDNFARFVCKNNGVLFENQLLQIGLKSEFRQNLGRMFIFYGNKTSTQFLNFTPTLICADDLQTNLNLQTKPVDPTVDGGAQVQQVVNIECISDFTEAPVLNIQFRYGGTFQNVSVKLPITLNKFFQPTEMASQDFFQRWKQLSNPQQEVQNIFKAKHPMDTEITKAKIIGFGSALLEEVDPNPANFVGAGIIHTKTTQIGCLLRLEPNLQAQMYRLTLRTSKDTVSQRLCELLSEQF

来源 Source

来源生物 organism	Mus musculus
通用名 common_name	house mouse
NCBI Class编号 ncbi_taxonomy_id	10090
宿主生物 host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Coiled-coil domain-containing protein 32
Molecular weight formula_weight	1033.1 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	P

NAFSDSFMD

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	183

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8. Citations (1)

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Unit-cell length a length_a	40.807 Å
Unit-cell length b length_b	72.465 Å
Unit-cell length c length_c	42.053 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	99.09 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	2

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	monoclinic

Resolution resolution	1.910 Å
Low-resolution limit resolution_low	20.880 Å
R factor r_factor	0.1872
R_work r_work	0.1823
R_free r_free	0.2302

fit	/app/data/saxs_computation/pu/9pue/9pue.fit
pddf	/app/data/pr_computation/pu/9pue/9pue.pr.out
profile	/app/data/saxs_computation/pu/9pue/9pue.dat

Structure of Alpha Appendage of AP2 bound to the FxDxF motif derived of CCDC32

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

AP-2 complex subunit alpha-2

State in the Current Structure

Other States of the Same Protein in the Database

Coiled-coil domain-containing protein 32

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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 water

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)