7ciq

Phosphorylation modification of MHC I polypeptide

Method: X-RAY DIFFRACTION Dmax: 76.1 Å Quality: EXCELLENT

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

MHC class I antigen

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 11–286 Not recorded Beta-2-microglobulin × 1 (P61769) ARG-ARG-PHE-SER-ARG-SER-PRO-ILE-ARG-ARG × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277.15 K;0.2MSodiumchloride,0.1MBis-Tris(pH6.5),25%(w/v)PEG 3,350 Resolution 1.59 Å R-free 0.209

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 1
Chains and sequence ranges Author chain A; PDBConstruct 1–276; UniProt 11–286

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 (A3F718) ARG-ARG-PHE-SER-ARG-SER-PRO-ILE-ARG-ARG × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277.15 K;0.2MSodiumchloride,0.1MBis-Tris(pH6.5),25%(w/v)PEG 3,350 Resolution 1.59 Å R-free 0.209

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 2
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 7ciq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7ciq
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id7ciq
Deposition date deposition_date2020-07-08
Structure title titlePhosphorylation modification of MHC I polypeptide
Keywords keywordsMHC I complex, Son3, 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_guinier24.17
Radius of gyration Rg (electron density) rg_electron23.03
Forward intensity I(0) i037346300.00
Molecular weight molecular_weight45068.0 kDa
Excluded volume excluded_volume55510 ų
Envelope volume envelope_volume68296 ų
Hydration-shell volume shell_volume24774 ų
Envelope diameter envelope_diameter79.9
Shell Rg shell_rg29.82
Envelope Rg envelope_rg23.15
Shape Rg shape_rg23.01
Total Rg total_rg23.89
Total atoms total_atoms3183
Residues n_residues386
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 dmax76.1
Rg (real space) rg_real24.10
Rg uncertainty (real space) rg_real_error0.53
I(0) (real space) i0_real3.7350e+07
I(0) uncertainty (real space) i0_real_error6.2660e+05
Rg (reciprocal space) rg_reciprocal24.12
I(0) (reciprocal space) i0_reciprocal37350000.0000
Solution quality estimate total_estimate0.9096
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.7
Skewness Skewness skewness0.248
Kurtosis Kurtosis kurtosis-0.476
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha11270000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.942; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id7ciqA01
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_id7ciqA02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)