7n2n

TCR-antigen complex AS4.2-PRPF3-HLA*B27

Method: X-RAY DIFFRACTION Dmax: 134.7 Å Quality: GOOD

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

Human leukocyte antigen (HLA) B27

Homo sapiens

UniProt A3F718

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain A; UniProt 11–288 Not recorded Pre-MRNA Processing Factor 3 × 1 Beta-2-microglobulin × 1 (P61769) T cell receptor alpha chain × 1 T cell receptor beta chain × 1 GOL GLYCEROL × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;20% PEG3350 with 0.2M Potassium phosphate monobasic Resolution 2.60 Å R-free 0.291

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.

17 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A3F718_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain A; PDBConstruct 1–278; UniProt 11–288

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain B; UniProt 21–119 Fragment:UNP residues 21-119 Pre-MRNA Processing Factor 3 × 1 Human leukocyte antigen (HLA) B27 × 1 (A3F718) T cell receptor alpha chain × 1 T cell receptor beta chain × 1 GOL GLYCEROL × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;20% PEG3350 with 0.2M Potassium phosphate monobasic Resolution 2.60 Å R-free 0.291

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 1998 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name B2MG_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain B; PDBConstruct 2–100; UniProt 21–119

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 7n2n

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7n2n
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7n2n
Deposition date deposition_date2021-05-29
Structure title titleTCR-antigen complex AS4.2-PRPF3-HLA*B27
Keywords keywordsTCR MHC HLA-B27, 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_guinier37.45
Radius of gyration Rg (electron density) rg_electron37.81
Forward intensity I(0) i0145679000.00
Molecular weight molecular_weight93994.0 kDa
Excluded volume excluded_volume116190 ų
Envelope volume envelope_volume158510 ų
Hydration-shell volume shell_volume38396 ų
Envelope diameter envelope_diameter138.6
Shell Rg shell_rg39.14
Envelope Rg envelope_rg38.13
Shape Rg shape_rg37.82
Total Rg total_rg37.88
Total atoms total_atoms6628
Residues n_residues821
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 dmax134.7
Rg (real space) rg_real38.06
Rg uncertainty (real space) rg_real_error2.05
I(0) (real space) i0_real1.4570e+08
I(0) uncertainty (real space) i0_real_error2.8580e+06
Rg (reciprocal space) rg_reciprocal37.68
I(0) (reciprocal space) i0_reciprocal145600000.0000
Solution quality estimate total_estimate0.7777
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary32.1
Skewness Skewness skewness0.661
Kurtosis Kurtosis kurtosis-0.176
Angular range angular_range— – 0.2100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha18060000.0000
Real-space data points n_real_points43
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.569; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.666; Smooth: 0.736

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id7n2nA01
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_id7n2nA02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id7n2nD01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)