4ww2

X-ray diffraction
2.48Å resolution

Crystal structure of human TCR Alpha Chain-TRAV21-TRAJ8, Beta Chain-TRBV7-8, Antigen-presenting glycoprotein CD1d, and Beta-2-microglobulin

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-100946 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
T cell receptor alpha chain constant; T cell receptor alpha variable 21 Chain: A
Molecule details ›
Chain: A
Length: 207 amino acids
Theoretical weight: 22.57 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A0B4J279 (Residues: 20-110; Coverage: 98%)
  • Canonical: P01848 (Residues: 1-93; Coverage: 66%)
Gene names: TCRA, TRAC, TRAV21
Sequence domains:
Structure domains: Immunoglobulins
T cell receptor beta constant 2 Chain: B
Molecule details ›
Chain: B
Length: 243 amino acids
Theoretical weight: 27.37 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A5B9 (Residues: 1-129; Coverage: 73%)
Gene names: TCRBC2, TRBC2
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
Antigen-presenting glycoprotein CD1d Chain: C
Molecule details ›
Chain: C
Length: 284 amino acids
Theoretical weight: 32.32 KDa
Source organism: Homo sapiens
Expression system: Trichoplusia ni
UniProt:
  • Canonical: P15813 (Residues: 21-295; Coverage: 87%)
Gene name: CD1D
Sequence domains:
Structure domains:
Beta-2-microglobulin Chain: F
Molecule details ›
Chain: F
Length: 99 amino acids
Theoretical weight: 11.75 KDa
Source organism: Homo sapiens
Expression system: Trichoplusia ni
UniProt:
  • Canonical: P61769 (Residues: 21-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX2
Spacegroup: C2
Unit cell:
a: 209.99Å b: 46.3Å c: 124.65Å
α: 90° β: 122.28° γ: 90°
R-values:
R R work R free
0.198 0.196 0.244
Expression systems:
  • Escherichia coli
  • Trichoplusia ni