PDBe 4pj9

X-ray diffraction
2Å resolution

Structure of human MR1-5-OP-RU in complex with human MAIT TRAJ20 TCR

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
Major histocompatibility complex class I-related gene protein Chain: A
Molecule details ›
Chain: A
Length: 271 amino acids
Theoretical weight: 31.71 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q95460 (Residues: 23-292; Coverage: 85%)
  • Best match: Q95460-5 (Residues: 23-202)
Gene name: MR1
Sequence domains:
Structure domains:
Beta-2-microglobulin Chain: B
Molecule details ›
Chain: B
Length: 100 amino acids
Theoretical weight: 11.88 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P61769 (Residues: 21-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
TCR-alpha Chain: C
Molecule details ›
Chain: C
Length: 203 amino acids
Theoretical weight: 22.52 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
Structure domains: Immunoglobulins
TCR-beta Chain: D
Molecule details ›
Chain: D
Length: 243 amino acids
Theoretical weight: 26.91 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
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: P41212
Unit cell:
a: 111.56Å b: 111.56Å c: 204.15Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.174 0.172 0.199
Expression system: Escherichia coli