PDBe 3e4r

X-ray diffraction
2.01Å resolution

Crystal structure of the alkanesulfonate binding protein (SsuA) from the phytopathogenic bacteria Xanthomonas axonopodis pv. citri bound to HEPES

Source organism: Xanthomonas citri
Entry authors: Balan A, Araujo FT, Sanches M, Chirgadze DY, Blundell TB, Barbosa JARG

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Nitrate transport protein Chain: A
Molecule details ›
Chain: A
Length: 324 amino acids
Theoretical weight: 34.57 KDa
Source organism: Xanthomonas citri
Expression system: Escherichia coli
  • Canonical: Q8PHQ1 (Residues: 38-341; Coverage: 100%)
Gene names: XAC3198, ssuA
Sequence domains: NMT1/THI5 like
Structure domains: Periplasmic binding protein-like II

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: OTHER
Spacegroup: P21
Unit cell:
a: 30.66Å b: 85.5Å c: 46.83Å
α: 90° β: 98.08° γ: 90°
R R work R free
0.145 0.142 0.22
Expression system: Escherichia coli