7k5a

X-ray diffraction
1.5Å resolution

The external aldimine form of Salmonella typhimurium Tryptophan Synthase mutant beta-Q114A in complex with cesium ion at the metal coordination site.

Released:
Entry authors: Hilario E, Dunn MF, Mueller LJ

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-133694 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Tryptophan synthase alpha chain Chain: A
Molecule details ›
Chain: A
Length: 268 amino acids
Theoretical weight: 28.7 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
Expression system: Escherichia coli
UniProt:
  • Canonical: P00929 (Residues: 1-268; Coverage: 100%)
Gene names: STM1727, trpA
Sequence domains: Tryptophan synthase alpha chain
Tryptophan synthase beta chain Chain: B
Molecule details ›
Chain: B
Length: 397 amino acids
Theoretical weight: 42.86 KDa
Source organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A2K1 (Residues: 1-397; Coverage: 100%)
Gene names: STM1726, trpB
Sequence domains: Pyridoxal-phosphate dependent enzyme

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-C
Spacegroup: C2
Unit cell:
a: 182.827Å b: 59.527Å c: 67.478Å
α: 90° β: 94.88° γ: 90°
R-values:
R R work R free
0.171 0.168 0.22
Expression system: Escherichia coli