5occ

X-ray diffraction
2.5Å resolution

Crystal structure of CD32b (Fc Gamma Receptor IIb) in complex with Human IgG1 Fab fragment (6G08)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-211054 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (4 distinct):
Low affinity immunoglobulin gamma Fc region receptor II-b Chain: A
Molecule details ›
Chain: A
Length: 176 amino acids
Theoretical weight: 19.71 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
UniProt:
  • Canonical: P31994 (Residues: 43-218; Coverage: 66%)
Gene names: CD32, FCG2, FCGR2B, IGFR2
Sequence domains: Immunoglobulin domain
Structure domains: Immunoglobulins
6G08 Fab heavy chain Chain: H
Molecule details ›
Chain: H
Length: 222 amino acids
Theoretical weight: 23.09 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
6G08 Fab Light Chain Chain: L
Molecule details ›
Chain: L
Length: 217 amino acids
Theoretical weight: 22.82 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
Structure domains: Immunoglobulins

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-2
Spacegroup: P212121
Unit cell:
a: 70.23Å b: 75.02Å c: 134.95Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.196 0.192 0.261
Expression system: Homo sapiens