X-ray diffraction
2.35Å resolution

Structure of fusion complex of major pilin CfaB and major pilin CfaB of CFA/I pilus from ETEC E. coli

Source organism: Escherichia coli
Entry authors: Xia D, Li YF

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
CFA/I fimbrial subunit B Chains: A, B
Molecule details ›
Chains: A, B
Length: 312 amino acids
Theoretical weight: 32.45 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
  • Canonical: E3PPC4 (Residues: 24-170; Coverage: 100%)
Gene names: ETEC_p948_0400, cfaB
Sequence domains: CS1 type fimbrial major subunit
Structure domains: CFA/I fimbrial subunit E, pilin domain

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P21212
Unit cell:
a: 75.151Å b: 134.217Å c: 65.04Å
α: 90° β: 90° γ: 90°
R R work R free
0.244 0.242 0.294
Expression system: Escherichia coli