PDBe 1tww

X-ray diffraction
2.5Å resolution

Dihydropteroate Synthetase, With Bound Substrate Analogue PtPP, From Bacillus anthracis


Function and Biology Details

Reaction catalysed:
6-hydroxymethyl-7,8-dihydropterin diphosphate + 4-aminobenzoate = diphosphate + dihydropteroate
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assemblies composition:
homo dimer
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Dihydropteroate synthase Chains: A, B
Molecule details ›
Chains: A, B
Length: 297 amino acids
Theoretical weight: 32.88 KDa
Source organism: Bacillus anthracis str. A2012
Expression system: Escherichia coli BL21(DE3)
  • Canonical: Q81VW8 (Residues: 4-280; Coverage: 99%)
Gene names: GBAA_0071, folP
Sequence domains: Pterin binding enzyme
Structure domains: Dihydropteroate synthase-like

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P6222
Unit cell:
a: 98.239Å b: 98.239Å c: 262.61Å
α: 90° β: 90° γ: 120°
R R work R free
0.213 0.211 0.254
Expression system: Escherichia coli BL21(DE3)