5ni9

X-ray diffraction
1.33Å resolution

Crystal structure of HLA-DRB1*04:01 with the alpha-enolase peptide 326-340

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-135323 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
HLA class II histocompatibility antigen, DR alpha chain Chain: A
Molecule details ›
Chain: A
Length: 189 amino acids
Theoretical weight: 21.91 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01903 (Residues: 26-206; Coverage: 79%)
Gene names: HLA-DRA, HLA-DRA1
Sequence domains:
Structure domains:
HLA class II histocompatibility antigen, DRB1 beta chain Chain: B
Molecule details ›
Chain: B
Length: 198 amino acids
Theoretical weight: 23.1 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01911 (Residues: 30-219; Coverage: 80%)
Gene name: HLA-DRB1
Sequence domains:
Structure domains:
Alpha-enolase Chain: C
Molecule details ›
Chain: C
Length: 15 amino acids
Theoretical weight: 1.68 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P06733 (Residues: 326-340; Coverage: 4%)
Gene names: ENO1, ENO1L1, MBPB1, MPB1

Ligands and Environments

3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE MASSIF-1
Spacegroup: P21212
Unit cell:
a: 68.447Å b: 128.109Å c: 53.585Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.146 0.146 0.176
Expression systems:
  • Escherichia coli
  • Not provided