PDBe 5x9r

X-ray diffraction
3.98Å resolution

Structural insights into the elevator-like mechanism of the sodium/citrate symporter CitS


Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Citrate-sodium symporter Chains: A, B
Molecule details ›
Chains: A, B
Length: 438 amino acids
Theoretical weight: 46.67 KDa
Source organism: Klebsiella pneumoniae
Expression system: Bacteria
  • Canonical: P31602 (Residues: 13-446; Coverage: 97%)
Gene name: citS
Sequence domains: 2-hydroxycarboxylate transporter family

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PAL/PLS BEAMLINE 7A (6B, 6C1)
Spacegroup: P41
Unit cell:
a: 93.998Å b: 93.998Å c: 172.947Å
α: 90° β: 90° γ: 90°
R R work R free
0.275 0.273 0.323
Expression system: Bacteria