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Cryo-EM reconstruction of the CFA/I bacterial adhesion pili

Electron Microscopy
3.2Å resolution
PDB entry 8ehr coloured by chain, front view.
PDB entry 8ehr coloured by chain, side view.
PDB entry 8ehr coloured by chain, top view.
Source organism: Escherichia coli
Assembly composition:
homo heptamer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: CFA/I fimbrial subunit B
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Multimeric state: homo heptamer
Accessible surface area: 43805.42 Å2
Buried surface area: 22299.2 Å2
Dissociation area: 11,149.6 Å2
Dissociation energy (ΔGdiss): 95.31 kcal/mol
Dissociation entropy (TΔSdiss): 76.87 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-215852

Macromolecules

CFA/I fimbrial subunit B
Chains: A, B, C, D, E, F, G
Length: 146 amino acids
Theoretical weight: 14.97 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0CK93 (Residues: 24-169; Coverage: 99%)
Gene name: cfaB
Pfam: CS1 type fimbrial major subunit
InterPro: Fimbrial major subunit, CS1-type
CFA/I fimbrial subunit B in PDB entry 8ehr, assembly 1, front view.
CFA/I fimbrial subunit B in PDB entry 8ehr, assembly 1, side view.
CFA/I fimbrial subunit B in PDB entry 8ehr, assembly 1, top view.
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