3v4p

crystal structure of a4b7 headpiece complexed with Fab ACT-1

Method: X-RAY DIFFRACTION D_max: 178.0 Å Quality: GOOD

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

Integrin alpha-4

Homo sapiens

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Other combination Heteromer Protein × 4 其他Polymer 1 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain A； UniProt 34–620	Fragment：unp residues 34-620 Mutation：R558A	Integrin beta-7 × 1 （P26010） MONOCLONAL ANTIBODY Act-1 HEAVY CHAIN × 1 MONOCLONAL ANTIBODY Act-1 LIGHT CHAIN × 1 ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 15P POLYETHYLENE GLYCOL (N=34) × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 8.5	Resolution 3.15 Å R-free 0.251
2	Other combination Heteromer Protein × 4 其他Polymer 1 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain C； UniProt 34–620	Fragment：unp residues 34-620 Mutation：R558A	Integrin beta-7 × 1 （P26010） MONOCLONAL ANTIBODY Act-1 HEAVY CHAIN × 1 MONOCLONAL ANTIBODY Act-1 LIGHT CHAIN × 1 ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 MG MAGNESIUM ION × 1 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 8.5	Resolution 3.15 Å R-free 0.251

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 3V4P	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
3V4V crystal structure of a4b7 headpiece complexed with Fab ACT-1 and RO0505376 Deposited 2011-12-15	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 34–620（587 aa） Fragment：unp residues 34-620	Mutation：R558A	CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 MG MAGNESIUM ION × 1 0DU N-(2,6-dichlorobenzoyl)-4-[1,6-dimethyl-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl]-L-phenylalanine × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris pH 8.5, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K	Resolution 3.10 Å R-free 0.231
3V4V crystal structure of a4b7 headpiece complexed with Fab ACT-1 and RO0505376 Deposited 2011-12-15	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 34–620（587 aa） Fragment：unp residues 34-620	Mutation：R558A	CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 MG MAGNESIUM ION × 1 0DU N-(2,6-dichlorobenzoyl)-4-[1,6-dimethyl-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl]-L-phenylalanine × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris pH 8.5, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K	Resolution 3.10 Å R-free 0.231
4HKC 14-3-3-zeta in complex with S1011 phosphorylated integrin alpha-4 peptide Deposited 2012-10-15	Different construct 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 1003–1032（30 aa） Fragment：UNP residues 1003-1032	Non-standard monomer：Yes (specific site not provided by mmCIF)	GOL GLYCEROL × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；277 K；0.1M Na HEPES (pH 7.5), 25% PEG 2000 MME, VAPOR DIFFUSION, SITTING DROP, temperature 277K	Resolution 2.20 Å R-free 0.239
5C7Z AP2 Mu2 adaptin C-terminal domain complexed with integrin alpha-4 peptide Deposited 2015-06-25	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 1008–1015（8 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.1；293 K；2.2M NaCl, 0.4M Na/K phosphate, 10MM DTT 0.1M MES pH 7.1, 15% glycerol, molar ratio of peptide to protein 3:1	Resolution 2.77 Å R-free 0.224
9P95 CryoEM structure of integrin alpha4beta7 bound to MAdCAM-1 Deposited 2025-06-24	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric	Chain A 1–970（970 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 CA CALCIUM ION × 3 MN MANGANESE (II) ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4；0.05% CHAPS added immediately before vitrification cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
9P96 CryoEM structure of the apo integrin alpha4beta7 Deposited 2025-06-24	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–970（970 aa）	Not recorded	CA CALCIUM ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å

5 other PDB entries and 6 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	ITA4_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–587； UniProt 34–620 Author chain C； PDBConstruct 1–587； UniProt 34–620

Integrin beta-7

Homo sapiens

UniProt P26010

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Other combination Heteromer Protein × 4 其他Polymer 1 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain B； UniProt 20–512	Fragment：unp residues 20-512	Integrin alpha-4 × 1 （P13612） MONOCLONAL ANTIBODY Act-1 HEAVY CHAIN × 1 MONOCLONAL ANTIBODY Act-1 LIGHT CHAIN × 1 ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 15P POLYETHYLENE GLYCOL (N=34) × 1 MG MAGNESIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 8.5	Resolution 3.15 Å R-free 0.251
2	Other combination Heteromer Protein × 4 其他Polymer 1 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain D； UniProt 20–512	Fragment：unp residues 20-512	Integrin alpha-4 × 1 （P13612） MONOCLONAL ANTIBODY Act-1 HEAVY CHAIN × 1 MONOCLONAL ANTIBODY Act-1 LIGHT CHAIN × 1 ;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 MG MAGNESIUM ION × 1 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 8.5	Resolution 3.15 Å R-free 0.251

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 3V4P	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
2BRQ Crystal structure of the filamin A repeat 21 complexed with the integrin beta7 cytoplasmic tail peptide Deposited 2005-05-11	Different construct 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 C 768–798（31 aa） Fragment：RESIDUES 768-798 Chain D 768–798（31 aa） Fragment：RESIDUES 768-798	Not recorded	GSH Glutathione × 2 GOL GLYCEROL × 2	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.5；1.26 M SODIUM CITRATE, 0.1 M CITRIC ACID PH 5.5	Resolution 2.10 Å R-free 0.243
3V4V crystal structure of a4b7 headpiece complexed with Fab ACT-1 and RO0505376 Deposited 2011-12-15	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 20–512（493 aa） Fragment：unp residues 20-512	Not recorded	CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 MG MAGNESIUM ION × 1 0DU N-(2,6-dichlorobenzoyl)-4-[1,6-dimethyl-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl]-L-phenylalanine × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris pH 8.5, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K	Resolution 3.10 Å R-free 0.231
3V4V crystal structure of a4b7 headpiece complexed with Fab ACT-1 and RO0505376 Deposited 2011-12-15	Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric	Chain D 20–512（493 aa） Fragment：unp residues 20-512	Not recorded	CA CALCIUM ION × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 MG MAGNESIUM ION × 1 0DU N-(2,6-dichlorobenzoyl)-4-[1,6-dimethyl-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl]-L-phenylalanine × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；0.1 M Tris pH 8.5, 0.1 M NaCl, 8-10% PEG 20,000, VAPOR DIFFUSION, HANGING DROP, temperature 277K	Resolution 3.10 Å R-free 0.231
8ZJF Cryo-EM structure of human integrin alpha-E beta-7 Deposited 2024-05-14	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 2–798（797 aa）	Not recorded	MG MAGNESIUM ION × 1 CA CALCIUM ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.70 Å
9P95 CryoEM structure of integrin alpha4beta7 bound to MAdCAM-1 Deposited 2025-06-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–723（723 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 CA CALCIUM ION × 3 MN MANGANESE (II) ION × 3	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4；0.05% CHAPS added immediately before vitrification cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.05 Å
9P96 CryoEM structure of the apo integrin alpha4beta7 Deposited 2025-06-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain B 101–473（373 aa）	Not recorded	CA CALCIUM ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.10 Å
9P97 CryoEM structure of the closed integrin alphaEbeta7 bound to fab LF61 Deposited 2025-06-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–723（723 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 CA CALCIUM ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.92 Å
9P98 CryoEM structure of the open integrin alphaEbeta7 bound to fab LF61 Deposited 2025-06-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–723（723 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 CA CALCIUM ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 2.93 Å
9P99 CryoEM structure of integrin alphaEbeta7 bound to E-cadherin Deposited 2025-06-24	Different construct Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric	Chain B 1–723（723 aa）	Not recorded	NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 CA CALCIUM ION × 3 MN MANGANESE (II) ION × 4	ELECTRON MICROSCOPY cryo-EM buffer pH 7.4 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.37 Å

8 other PDB entries and 9 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	ITB7_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–493； UniProt 20–512 Author chain D； PDBConstruct 1–493； UniProt 20–512

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	3v4p
Deposition date deposition_date	2011-12-15
Structure title title	crystal structure of a4b7 headpiece complexed with Fab ACT-1
Keywords keywords	Cell adhesion, MAdCAM-1, Membrane; CELL ADHESION
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	51.64 Å
Radius of gyration Rg (electron density) rg_electron	51.35 Å
Forward intensity I(0) i0	1410640000.00
Molecular weight molecular_weight	308280.0 kDa
Excluded volume excluded_volume	383590 Å³
Envelope volume envelope_volume	570880 Å³
Hydration-shell volume shell_volume	91971 Å³
Envelope diameter envelope_diameter	188.7 Å
Shell Rg shell_rg	55.32 Å
Envelope Rg envelope_rg	51.32 Å
Shape Rg shape_rg	51.31 Å
Total Rg total_rg	51.62 Å
Total atoms total_atoms	21677
Residues n_residues	2768
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	178.0 Å
Rg (real space) rg_real	51.62 Å
Rg uncertainty (real space) rg_real_error	1.79 Å
I(0) (real space) i0_real	1.4110e+09
I(0) uncertainty (real space) i0_real_error	2.8040e+07
Rg (reciprocal space) rg_reciprocal	51.66 Å
I(0) (reciprocal space) i0_reciprocal	1411000000.0000
Solution quality estimate total_estimate	0.8639
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	65.3 Å
Skewness Skewness skewness	0.339
Kurtosis Kurtosis kurtosis	-0.132
Angular range angular_range	— – 0.1500 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	70080000.0000
Real-space data points n_real_points	31
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.804; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.826

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Description description	Integrin alpha-4
Molecular weight formula_weight	65644.7 kDa
Mutation mutation	R558A
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C
Atom count atom_count	21722

YNVDTESALLYQGPHNTLFGYSVVLHSHGANRWLLVGAPTANWLANASVINPGAIYRCRIGKNPGQTCEQLQLGSPNGEPCGKTCLEERDNQWLGVTLSRQPGENGSIVTCGHRWKNIFYIKNENKLPTGGCYGVPPDLRTELSKRIAPCYQDYVKKFGENFASCQAGISSFYTKDLIVMGAPGSSYWTGSLFVYNITTNKYKAFLDKQNQVKFGSYLGYSVGAGHFRSQHTTEVVGGAPQHEQIGKAYIFSIDEKELNILHEMKGKKLGSYFGASVCAVDLNADGFSDLLVGAPMQSTIREEGRVFVYINSGSGAVMNAMETNLVGSDKYAARFGESIVNLGDIDNDGFEDVAIGAPQEDDLQGAIYIYNGRADGISSTFSQRIEGLQISKSLSMFGQSISGQIDADNNGYVDVAVGAFRSDSAVLLRTRPVVIVDASLSHPESVNRTKFDCVENGWPSVCIDLTLCFSYKGKEVPGYIVLFYNMSLDVNRKAESPPRFYFSSNGTSDVITGSIQVSSREANCRTHQAFMRKDVRDILTPIQIEAAYHLGPHVISKASTEEFPPLQPILQQKKEKDIMKKTINFARTGGLENLYFQ

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606

Entity 2 Entity 2 polymer

Description description	Integrin beta-7
Molecular weight formula_weight	55426.2 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D

ELDAKIPSTGDATEWRNPHLSMLGSCQPAPSCQKCILSHPSCAWCKQLNFTASGEAEARRCARREELLARGCPLEELEEPRGQQEVLQDQPLSQGARGEGATQLAPQRVRVTLRPGEPQQLQVRFLRAEGYPVDLYYLMDLSYSMKDDLERVRQLGHALLVRLQEVTHSVRIGFGSFVDKTVLPFVSTVPSKLRHPCPTRLERCQSPFSFHHVLSLTGDAQAFEREVGRQSVSGNLDSPEGGFDAILQAALCQEQIGWRNVSRLLVFTSDDTFHTAGDGKLGGIFMPSDGHCHLDSNGLYSRSTEFDYPSVGQVAQALSAANIQPIFAVTSAALPVYQELSKLIPKSAVGELSEDSSNVVQLIMDAYNSLSSTVTLEHSSLPPGVHISYESQCEGPEKREGKAEDRGQCNHVRINQTVTFWVSLQATHCLPEPHLLRLRALGFSEELIVELHTLCDCNCSDTQPQAPHCSDGQGHLQCGVCSCAPGRLGRLCESRGLENLYFQ

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Cricetulus griseus

Entity 3 Entity 3 polymer

Description description	MONOCLONAL ANTIBODY Act-1 HEAVY CHAIN
Molecular weight formula_weight	23570.2 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H,M

QVQLQQPGAELVKPGTSVKLSCKGYGYTFTSYWMHWVKQRPGQGLEWIGEIDPSESNTNYNQKFKGKATLTVDISSSTAYMQLSSLTSEDSAVYYCARGGYDGWDYAIDYWGQGTSVTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLESDLYTLSSSVTVPSSPRPSETVTCNVAHPASSTKVDKKIV

来源 Source

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

Entity 4 Entity 4 polymer

Description description	MONOCLONAL ANTIBODY Act-1 LIGHT CHAIN
Molecular weight formula_weight	23897.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L,N

DVVVTQTPLSLPVSFGDQVSISCRSSQSLAKSYGNTYLSWYLHKPGQSPQLLIYGISNRFSGVPDRFSGSGSGTDFTLKISTIKPEDLGMYYCLQGTHQPYTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWNIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRN

来源 Source

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

Entity 5 Entity 5 branched

Description description	;alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ;
Molecular weight formula_weight	748.7 kDa
Source method src_method	man
Copy count entity_count	2

Entity 6 Entity 6 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	10

来源 Source

Entity 7 Entity 7 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	9

Entity 8 Entity 8 non-polymer

Description description	POLYETHYLENE GLYCOL (N=34)
Molecular weight formula_weight	1529.8 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 9 Entity 9 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 10 Entity 10 non-polymer

Description description	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
Molecular weight formula_weight	122.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 11 Entity 11 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	21

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7. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (8 domains)

Domain ID domain_id	d3v4ph1
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.1 — Immunoglobulin
Family Family family	b.1.1.1 — V set domains (antibody variable domain-like)

Domain ID domain_id	d3v4ph2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d3v4pl1
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.1 — Immunoglobulin
Family Family family	b.1.1.1 — V set domains (antibody variable domain-like)

Domain ID domain_id	d3v4pl2
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.1 — Immunoglobulin
Family Family family	b.1.1.0 — automated matches

Domain ID domain_id	d3v4pm1
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.1 — Immunoglobulin
Family Family family	b.1.1.1 — V set domains (antibody variable domain-like)

Domain ID domain_id	d3v4pm2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d3v4pn1
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.1 — Immunoglobulin
Family Family family	b.1.1.1 — V set domains (antibody variable domain-like)

Domain ID domain_id	d3v4pn2
Class class	b — All beta proteins
Fold Fold fold	b.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamily	b.1.1 — Immunoglobulin
Family Family family	b.1.1.0 — automated matches

CATH v4.4 (16 domains)

Domain ID domain_id	3v4pA01
Class class	2 — Mainly Beta
Architecture architecture	130 — 7 Propeller
Topology topology	10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily	130 — Integrin alpha, N-terminal

Domain ID domain_id	3v4pA02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	1460 — Integrin domains. Chain A, domain 2

Domain ID domain_id	3v4pB01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	1510 — ntegrin, alpha v. Chain A, domain 3

Domain ID domain_id	3v4pB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	410 — von Willebrand factor, type A domain

Domain ID domain_id	3v4pC01
Class class	2 — Mainly Beta
Architecture architecture	130 — 7 Propeller
Topology topology	10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily	130 — Integrin alpha, N-terminal

Domain ID domain_id	3v4pC02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	1460 — Integrin domains. Chain A, domain 2

Domain ID domain_id	3v4pD01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	1510 — ntegrin, alpha v. Chain A, domain 3

Domain ID domain_id	3v4pD02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	410 — von Willebrand factor, type A domain

Domain ID domain_id	3v4pH01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	3v4pH02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	3v4pL01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	3v4pL02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	3v4pM01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	3v4pM02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	3v4pN01
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

Domain ID domain_id	3v4pN02
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	40 — Immunoglobulin-like
Homologous superfamily homologous superfamily	10 — Immunoglobulins

▶

8. Citations (1)

▶

Unit-cell length a length_a	137.780 Å
Unit-cell length b length_b	122.740 Å
Unit-cell length c length_c	158.140 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	115.38 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

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

Resolution resolution	3.150 Å
Low-resolution limit resolution_low	46.130 Å
R factor r_factor	0.2204
R_work r_work	0.2199
R_free r_free	0.2514

fit	/app/data/saxs_computation/v4/3v4p/3v4p.fit
pddf	/app/data/pr_computation/v4/3v4p/3v4p.pr.out
profile	/app/data/saxs_computation/v4/3v4p/3v4p.dat

crystal structure of a4b7 headpiece complexed with Fab ACT-1

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

Integrin alpha-4

State in the Current Structure

Other States of the Same Protein in the Database

Integrin beta-7

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

6. Entities and Polymers Entities & Polymers (11)

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

来源 Source

Entity 4 Entity 4 polymer

Polymer Polymer

来源 Source

Entity 5 Entity 5 branched

Entity 6 Entity 6 non-polymer

来源 Source

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 water

7. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (8 domains)

CATH v4.4 (16 domains)

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)