4f3s

X-ray diffraction
2.14Å resolution

Crystal structure of periplasmic D-alanine ABC transporter from Salmonella enterica

Released:
Entry authors: Agarwal R, Chamala S, Evans B, Gizzi A, Hillerich B, Kar A, Lafleur J, Siedel R, Villigas G, Zencheck W, Foti R, Almo SC, Swaminathan S, New York Structural Genomics Research Consortium (NYSGRC)

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-187325 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
ABC transporter D-alanine-binding periplasmic protein Chain: A
Molecule details ›
Chain: A
Length: 255 amino acids
Theoretical weight: 29.6 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q8ZPA3 (Residues: 23-253; Coverage: 100%)
Gene names: STM1633, dalS
Sequence domains: Bacterial extracellular solute-binding proteins, family 3
Structure domains: Periplasmic binding protein-like II

Ligands and Environments

3 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: P6122
Unit cell:
a: 80.406Å b: 80.406Å c: 187.041Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.191 0.189 0.221
Expression system: Escherichia coli BL21(DE3)