1vgk

X-ray diffraction
2.06Å resolution

The crystal structure of class I Major histocompatibility complex, H-2Kd at 2.0 A resolution

Released:
Source organisms:
Entry authors: Zhou M, Xu Y, Liu Y, Gao GF, Tien P, Rao Z

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-135302 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
H-2 class I histocompatibility antigen, K-D alpha chain Chain: A
Molecule details ›
Chain: A
Length: 274 amino acids
Theoretical weight: 31.99 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P01902 (Residues: 22-295; Coverage: 79%)
Gene names: H2-K, H2-K1
Sequence domains:
Structure domains:
Beta-2-microglobulin Chain: B
Molecule details ›
Chain: B
Length: 99 amino acids
Theoretical weight: 11.75 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
syvntnmgl Chain: C
Molecule details ›
Chain: C
Length: 9 amino acids
Theoretical weight: 998 Da

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007
Spacegroup: P21212
Unit cell:
a: 89.082Å b: 110.389Å c: 47.015Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.192 0.19 0.24
Expression systems:
  • Escherichia coli
  • Escherichia coli BL21(DE3)