6vr5

Complex of HLA-A2, a class I MHC, with a p53 peptide

Method: X-RAY DIFFRACTION Dmax: 117.2 Å Quality: GOOD

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

MHC class I antigen

Homo sapiens

UniProt Q861F7

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 1–275 Fragment:N-terminal residues, 1-275 Beta-2-microglobulin × 1 (P61769) Cellular tumor antigen p53 peptide × 1 (P04637) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;15% PEG 8000, 0.1 M Tris-HCl, 0.2 M magnesium chloride Resolution 2.38 Å R-free 0.280
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain D; UniProt 1–275 Fragment:N-terminal residues, 1-275 Beta-2-microglobulin × 1 (P61769) Cellular tumor antigen p53 peptide × 1 (P04637) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;15% PEG 8000, 0.1 M Tris-HCl, 0.2 M magnesium chloride Resolution 2.38 Å R-free 0.280

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.

31 other PDB entries and 40 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q861F7_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–276; UniProt 1–275 Author chain D; PDBConstruct 2–276; UniProt 1–275

Beta-2-microglobulin

Homo sapiens

UniProt P61769

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 21–119 Not recorded MHC class I antigen × 1 (Q861F7) Cellular tumor antigen p53 peptide × 1 (P04637) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;15% PEG 8000, 0.1 M Tris-HCl, 0.2 M magnesium chloride Resolution 2.38 Å R-free 0.280
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain E; UniProt 21–119 Not recorded MHC class I antigen × 1 (Q861F7) Cellular tumor antigen p53 peptide × 1 (P04637) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;15% PEG 8000, 0.1 M Tris-HCl, 0.2 M magnesium chloride Resolution 2.38 Å R-free 0.280

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.

1313 other PDB entries and 1997 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name B2MG_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 2–100; UniProt 21–119 Author chain E; PDBConstruct 2–100; UniProt 21–119

Cellular tumor antigen p53 peptide

Homo sapiens

UniProt P04637

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 P; UniProt 168–176 Fragment:residues 168-176 Mutation:R175H MHC class I antigen × 1 (Q861F7) Beta-2-microglobulin × 1 (P61769) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;15% PEG 8000, 0.1 M Tris-HCl, 0.2 M magnesium chloride Resolution 2.38 Å R-free 0.280
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain Q; UniProt 168–176 Fragment:residues 168-176 Mutation:R175H MHC class I antigen × 1 (Q861F7) Beta-2-microglobulin × 1 (P61769) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;15% PEG 8000, 0.1 M Tris-HCl, 0.2 M magnesium chloride Resolution 2.38 Å R-free 0.280

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.

291 other PDB entries and 461 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name P53_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain P; PDBConstruct 1–9; UniProt 168–176 Author chain Q; PDBConstruct 1–9; UniProt 168–176

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

SAXS scattering curve SAXS Profile

SAXS profile for 6vr5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6vr5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6vr5
Deposition date deposition_date2020-02-06
Structure title titleComplex of HLA-A2, a class I MHC, with a p53 peptide
Keywords keywordsTCR complex, MHC, HLA, adoptive cell therapy, IMMUNE SYSTEM; IMMUNE SYSTEM
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.58
Radius of gyration Rg (electron density) rg_electron34.07
Forward intensity I(0) i0127731000.00
Molecular weight molecular_weight87036.0 kDa
Excluded volume excluded_volume107290 ų
Envelope volume envelope_volume142940 ų
Hydration-shell volume shell_volume36254 ų
Envelope diameter envelope_diameter120.7
Shell Rg shell_rg39.02
Envelope Rg envelope_rg33.81
Shape Rg shape_rg34.05
Total Rg total_rg34.49
Total atoms total_atoms6149
Residues n_residues765
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

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

Maximum dimension Dmax dmax117.2
Rg (real space) rg_real34.69
Rg uncertainty (real space) rg_real_error1.26
I(0) (real space) i0_real1.2770e+08
I(0) uncertainty (real space) i0_real_error2.1780e+06
Rg (reciprocal space) rg_reciprocal34.62
I(0) (reciprocal space) i0_reciprocal127700000.0000
Solution quality estimate total_estimate0.8870
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary35.7
Skewness Skewness skewness0.381
Kurtosis Kurtosis kurtosis-0.463
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha12870000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.872; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.949; Smooth: 0.963

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd6vr5a1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.19 — MHC antigen-recognition domain
Superfamily Superfamily superfamilyd.19.1 — MHC antigen-recognition domain
Family Family familyd.19.1.1 — MHC antigen-recognition domain
Domain ID domain_idd6vr5a2
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.0 — automated matches
Domain ID domain_idd6vr5b1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.2 — C1 set domains (antibody constant domain-like)
Domain ID domain_idd6vr5b2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd6vr5d1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.19 — MHC antigen-recognition domain
Superfamily Superfamily superfamilyd.19.1 — MHC antigen-recognition domain
Family Family familyd.19.1.1 — MHC antigen-recognition domain
Domain ID domain_idd6vr5d2
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.0 — automated matches
Domain ID domain_idd6vr5e1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.2 — C1 set domains (antibody constant domain-like)
Domain ID domain_idd6vr5e2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (6 domains)

Domain ID domain_id6vr5A01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology500 — Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1
Homologous superfamily homologous superfamily10 — MHC class I-like antigen recognition-like
Domain ID domain_id6vr5A02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id6vr5B00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id6vr5D01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology500 — Murine Class I Major Histocompatibility Complex, H2-DB; Chain A, domain 1
Homologous superfamily homologous superfamily10 — MHC class I-like antigen recognition-like
Domain ID domain_id6vr5D02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id6vr5E00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)