2ar8

X-ray diffraction
2.2Å resolution

The structure of tryptophan 7-halogenase (PrnA)suggests a mechanism for regioselective chlorination

Released:

Function and Biology Details

Reaction catalysed:
Tryptophan + FADH(2) + chloride + O(2) + H(+) = 7-chloro-L-tryptophan + FAD + 2 H(2)O
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-161159 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Tryptophan 7-halogenase PrnA Chain: A
Molecule details ›
Chain: A
Length: 538 amino acids
Theoretical weight: 61.15 KDa
Source organism: Pseudomonas fluorescens
Expression system: Pseudomonas fluorescens
UniProt:
  • Canonical: P95480 (Residues: 1-538; Coverage: 100%)
Gene name: prnA
Sequence domains: Tryptophan halogenase
Structure domains: FAD/NAD(P)-binding domain

Ligands and Environments


Cofactor: Ligand FAD 1 x FAD
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P43212
Unit cell:
a: 67.128Å b: 67.128Å c: 275.702Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.174 0.172 0.217
Expression system: Pseudomonas fluorescens