CATH Classification

Domain Context

CATH Clusters

Superfamily 1.20.58.480
Functional Family Tryptophan 2,3-dioxygenase

Enzyme Information

1.13.11.11
Tryptophan 2,3-dioxygenase.
based on mapping to UniProt Q1LK00
L-tryptophan + O(2) = N-formyl-L-kynurenine.
-!- Catalyzes, together with EC 1.13.11.52, the first and rate-limiting step in the kynurenine pathway, the major pathway of tryptophan metabolism. -!- Specific for tryptophan as substrate, but is far more active with L-tryptophan than with D-tryptophan. -!- Formerly EC 1.11.1.4 and EC 1.13.1.12.

UniProtKB Entries (1)

Q1LK00
T23O_CUPMC
Cupriavidus metallidurans CH34
Tryptophan 2,3-dioxygenase

PDB Structure

PDB 2NOX
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure and mechanism of tryptophan 2,3-dioxygenase, a heme enzyme involved in tryptophan catabolism and in quinolinate biosynthesis.
Zhang, Y., Kang, S.A., Mukherjee, T., Bale, S., Crane, B.R., Begley, T.P., Ealick, S.E.
Biochemistry