5ksb

X-ray diffraction
2.9Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-100933 (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (6 distinct):
HLA class II histocompatibility antigen, DQ alpha 1 chain Chains: A, C
Molecule details ›
Chains: A, C
Length: 191 amino acids
Theoretical weight: 21.5 KDa
Source organism: Homo sapiens
Expression system: Trichoplusia ni
UniProt:
  • Canonical: P01909 (Residues: 24-206; Coverage: 79%)
Gene name: HLA-DQA1
Sequence domains:
Structure domains:
Gamma-gliadin; Ig-like domain-containing protein Chains: B, D
Molecule details ›
Chains: B, D
Length: 225 amino acids
Theoretical weight: 25.83 KDa
Source organisms: Expression system: Trichoplusia ni
UniProt:
  • Canonical: P08079 (Residues: 132-141; Coverage: 4%)
  • Canonical: A0A0U5Q247 (Residues: 12-12, 33-224; Coverage: 75%)
Gene name: HLA-DQB1
Sequence domains:
Structure domains:
T cell receptor alpha chain constant; T cell receptor alpha variable 20 Chains: E, G
Molecule details ›
Chains: E, G
Length: 206 amino acids
Theoretical weight: 22.88 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A0B4J274 (Residues: 22-112; Coverage: 100%)
  • Canonical: P01848 (Residues: 1-93; Coverage: 66%)
Gene names: TCRA, TRAC, TRAV20
Sequence domains:
Structure domains: Immunoglobulins
Ig-like domain-containing protein; T cell receptor beta constant 2 Chains: F, H
Molecule details ›
Chains: F, H
Length: 243 amino acids
Theoretical weight: 27.42 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A580 (Residues: 22-113; Coverage: 99%)
  • Canonical: A0A5B9 (Residues: 1-129; Coverage: 73%)
Gene names: TCRBC2, TCRBV1S1A1N1, TRBC2, TRBV9
Sequence domains:
Structure domains: Immunoglobulins
Gamma-gliadin Chains: I, J
Molecule details ›
Chains: I, J
Length: 11 amino acids
Theoretical weight: 1.22 KDa
Source organism: Triticum aestivum
Expression system: Trichoplusia ni
UniProt:
  • Canonical: P08079 (Residues: 133-141; Coverage: 4%)

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX2
Spacegroup: P212121
Unit cell:
a: 115.89Å b: 125.05Å c: 165.63Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.221 0.219 0.254
Expression systems:
  • Trichoplusia ni
  • Escherichia coli