X-ray diffraction
2.35Å resolution

Cocrystal structure of Fc gamma receptor IIIa interacting with Affimer G3, a specific binding protein which blocks IgG binding to the receptor.


Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Low affinity immunoglobulin gamma Fc region receptor III-A Chains: A, B
Molecule details ›
Chains: A, B
Length: 175 amino acids
Theoretical weight: 20.08 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
  • Canonical: P08637 (Residues: 19-193; Coverage: 74%)
Gene names: CD16A, FCG3, FCGR3, FCGR3A, IGFR3
Sequence domains: Immunoglobulin domain
Structure domains: Immunoglobulins
Affimer G3 Chains: C, D
Molecule details ›
Chains: C, D
Length: 101 amino acids
Theoretical weight: 11.52 KDa
Source organism: synthetic construct
Expression system: Escherichia coli
Structure domains: Nuclear Transport Factor 2; Chain: A,

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I24
Spacegroup: P21
Unit cell:
a: 64.985Å b: 59.925Å c: 100.001Å
α: 90° β: 102.09° γ: 90°
R R work R free
0.208 0.206 0.244
Expression systems:
  • Homo sapiens
  • Escherichia coli