6iwg

Crystal structure of rhesus macaque MHC class I molecule Mamu-B*05104 complexed with N-myristoylated 4-mer lipopeptide derived from SIV nef protein

Method: X-RAY DIFFRACTION Dmax: 75.7 Å Quality: EXCELLENT

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

MHC class I antigen

Macaca mulatta

UniProt B2ZHY7

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 22–297 Mutation:R128E,K177E,D223E,K264E Beta-2-microglobulin × 1 (Q6V7J5) N-myristoylated 4-mer lipopeptide × 1 NA SODIUM ION × 4 EDO 1,2-ETHANEDIOL × 18 BO3 BORIC ACID × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;277.15 K;100mM MIB, 25% PEG 1500 Resolution 1.80 Å R-free 0.215

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.

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

View Construct and Data Evidence
UniProt name B2ZHY7_MACMU
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–276; UniProt 22–297

Beta-2-microglobulin

Macaca mulatta

UniProt Q6V7J5

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 20–119 Not recorded MHC class I antigen × 1 (B2ZHY7) N-myristoylated 4-mer lipopeptide × 1 NA SODIUM ION × 4 EDO 1,2-ETHANEDIOL × 18 BO3 BORIC ACID × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7;277.15 K;100mM MIB, 25% PEG 1500 Resolution 1.80 Å R-free 0.215

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.

15 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name B2MG_MACMU
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–100; UniProt 20–119

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 6iwg

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id6iwg
Deposition date deposition_date2018-12-05
Structure title titleCrystal structure of rhesus macaque MHC class I molecule Mamu-B*05104 complexed with N-myristoylated 4-mer lipopeptide derived from SIV nef protein
Keywords keywordsAntigen presentation, Major histocompatibility complex, N-myristoylation, AIDS, nef, 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_guinier24.23
Radius of gyration Rg (electron density) rg_electron22.98
Forward intensity I(0) i037069900.00
Molecular weight molecular_weight45501.0 kDa
Excluded volume excluded_volume56283 ų
Envelope volume envelope_volume67906 ų
Hydration-shell volume shell_volume24806 ų
Envelope diameter envelope_diameter80.3
Shell Rg shell_rg29.80
Envelope Rg envelope_rg23.10
Shape Rg shape_rg22.96
Total Rg total_rg23.84
Total atoms total_atoms3208
Residues n_residues380
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 dmax75.7
Rg (real space) rg_real24.16
Rg uncertainty (real space) rg_real_error0.45
I(0) (real space) i0_real3.7070e+07
I(0) uncertainty (real space) i0_real_error5.6710e+05
Rg (reciprocal space) rg_reciprocal24.18
I(0) (reciprocal space) i0_reciprocal37070000.0000
Solution quality estimate total_estimate0.9104
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.6
Skewness Skewness skewness0.255
Kurtosis Kurtosis kurtosis-0.461
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha9454000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.945; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id6iwgA01
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_id6iwgA02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id6iwgB00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)