5d7i

X-ray diffraction
2Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-229982 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Major histocompatibility complex class I-related gene protein Chains: A, C
Molecule details ›
Chains: A, C
Length: 271 amino acids
Theoretical weight: 31.71 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q95460 (Residues: 23-292; Coverage: 85%)
Gene name: MR1
Sequence domains:
Structure domains:
Beta-2-microglobulin Chains: B, D
Molecule details ›
Chains: B, D
Length: 100 amino acids
Theoretical weight: 11.88 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P61769 (Residues: 21-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
M33.64 TCR Alpha Chain Chains: E, G
Molecule details ›
Chains: E, G
Length: 204 amino acids
Theoretical weight: 22.78 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
Structure domains: Immunoglobulins
M33.64 TCR Beta Chain Chains: F, H
Molecule details ›
Chains: F, H
Length: 245 amino acids
Theoretical weight: 27.18 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
Structure domains: Immunoglobulins

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX2
Spacegroup: C2
Unit cell:
a: 214.3Å b: 69.66Å c: 141.19Å
α: 90° β: 103.99° γ: 90°
R-values:
R R work R free
0.18 0.178 0.22
Expression system: Escherichia coli BL21(DE3)