6y2a

X-ray diffraction
1.25Å resolution

Crystal structure of HLA-B2705 complexed with the nona-peptide mQ

Released:
Entry authors: Loll B, Rueckert C, Ziegler B-U, Ziegler A

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-105582 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Ig-like domain-containing protein Chain: A
Molecule details ›
Chain: A
Length: 276 amino acids
Theoretical weight: 31.93 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A6B7HFJ9 (Residues: 25-300; Coverage: 82%)
Gene name: HLA-B
Sequence 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
mQ Chain: C
Molecule details ›
Chain: C
Length: 9 amino acids
Theoretical weight: 1.03 KDa
Source organism: synthetic construct
Expression system: synthetic construct

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P212121
Unit cell:
a: 50.89Å b: 82.32Å c: 109.61Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.13 0.129 0.155
Expression systems:
  • Escherichia coli
  • synthetic construct