X-ray diffraction
2.1Å resolution

Crystal structure of the extracellular fragment of Fc alpha Receptor I (CD89)

Source organism: Homo sapiens
Primary publication:
Crystal structure of the ectodomain of human FcalphaRI.
J. Biol. Chem. 278 27966-70 (2003)
PMID: 12783876

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Immunoglobulin alpha Fc receptor Chain: A
Molecule details ›
Chain: A
Length: 218 amino acids
Theoretical weight: 25.01 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P24071 (Residues: 20-229; Coverage: 78%)
  • Best match: P24071-5 (Residues: 12-204)
Gene names: CD89, FCAR
Structure domains: Immunoglobulins

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL41XU
Spacegroup: C2221
Unit cell:
a: 59.01Å b: 69.45Å c: 106.35Å
α: 90° β: 90° γ: 90°
R R work R free
0.243 0.21 0.239
Expression system: Escherichia coli