5nik

Electron Microscopy
3.3Å resolution

Structure of the MacAB-TolC ABC-type tripartite multidrug efflux pump

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero undecamer (preferred)
PDBe Complex ID:
PDB-CPX-136396 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Outer membrane protein TolC Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 479 amino acids
Theoretical weight: 52.51 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P02930 (Residues: 23-493; Coverage: 100%)
Gene names: JW5503, b3035, colE1-i, mtcB, mukA, refI, toc, tolC, weeA
Sequence domains: Outer membrane efflux protein
Structure domains: Outer membrane efflux proteins (OEP)
Macrolide export protein MacA Chains: D, E, F, G, H, I
Molecule details ›
Chains: D, E, F, G, H, I
Length: 371 amino acids
Theoretical weight: 40.72 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P75830 (Residues: 1-371; Coverage: 100%)
Gene names: JW0862, b0878, macA, ybjY
Sequence domains: Barrel-sandwich domain of CusB or HlyD membrane-fusion
Macrolide export ATP-binding/permease protein MacB Chains: J, K
Molecule details ›
Chains: J, K
Length: 654 amino acids
Theoretical weight: 71.6 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli
UniProt:
  • Canonical: P75831 (Residues: 1-648; Coverage: 100%)
Gene names: JW0863, b0879, macB, ybjZ
Sequence domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.3Å
Relevant EMDB volumes: EMD-3652
Expression system: Escherichia coli