2hdi

X-ray diffraction
2.5Å resolution

Crystal structure of the Colicin I receptor Cir from E.coli in complex with receptor binding domain of Colicin Ia.

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-139156 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Colicin I receptor Chain: A
Molecule details ›
Chain: A
Length: 639 amino acids
Theoretical weight: 71.29 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P17315 (Residues: 26-663; Coverage: 100%)
Gene names: JW2142, b2155, cir, cirA, feuA
Sequence domains:
Structure domains:
Colicin-Ia Chain: B
Molecule details ›
Chain: B
Length: 113 amino acids
Theoretical weight: 12.89 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P06716 (Residues: 282-385; Coverage: 17%)
Gene name: cia
Sequence domains: Colicin Ia
Structure domains: Colicin Ia; domain 2

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: C2
Unit cell:
a: 132.633Å b: 130.494Å c: 56.261Å
α: 90° β: 101.22° γ: 90°
R-values:
R R work R free
0.191 0.188 0.249
Expression system: Escherichia coli BL21(DE3)