3b5y

X-ray diffraction
4.5Å resolution

Crystal Structure of MsbA from Salmonella typhimurium with AMPPNP

Released:
Primary publication:
Flexibility in the ABC transporter MsbA: Alternating access with a twist.
Proc Natl Acad Sci U S A 104 19005-10 (2007)
PMID: 18024585

Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-159094 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
ATP-dependent lipid A-core flippase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 582 amino acids
Theoretical weight: 64.41 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P63359 (Residues: 1-582; Coverage: 100%)
Gene names: STM0984, msbA
Sequence domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-2
Spacegroup: C2
Unit cell:
a: 262.929Å b: 121.236Å c: 173.119Å
α: 90° β: 121.89° γ: 90°
R-values:
R R work R free
0.295 0.295 0.343
Expression system: Escherichia coli BL21