X-ray diffraction
3.4Å resolution

Crystal structure of ferric citrate transporter FecA in complex with ferric citrate


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Fe(3+) dicitrate transport protein FecA Chains: A, B
Molecule details ›
Chains: A, B
Length: 751 amino acids
Theoretical weight: 83.17 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21
  • Canonical: P13036 (Residues: 34-774; Coverage: 100%)
Gene names: JW4251, b4291, fecA
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X9B
Spacegroup: P21
Unit cell:
a: 85.489Å b: 147.003Å c: 96.131Å
α: 90° β: 110.58° γ: 90°
R R work R free
0.283 0.239 0.314
Expression system: Escherichia coli BL21