3hv1

X-ray diffraction
1.9Å resolution

Crystal structure of a polar amino acid ABC uptake transporter substrate binding protein from Streptococcus thermophilus

Released:
Entry authors: Palani K, Burley SK, Swaminathan S, New York SGX Research Center for Structural Genomics (NYSGXRC)

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
homo dimer
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-177589 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Solute-binding protein family 3/N-terminal domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 268 amino acids
Theoretical weight: 30.51 KDa
Source organism: Streptococcus thermophilus LMG 18311
Expression system: Escherichia coli
UniProt:
  • Canonical: Q5M4P7 (Residues: 27-283; Coverage: 99%)
Gene name: stu0877
Sequence domains: Bacterial extracellular solute-binding proteins, family 3
Structure domains: Periplasmic binding protein-like II

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P21
Unit cell:
a: 47.559Å b: 78.563Å c: 80.03Å
α: 90° β: 105.41° γ: 90°
R-values:
R R work R free
0.222 0.222 0.254
Expression system: Escherichia coli