1.13.11.11: tryptophan 2,3-dioxygenase

This is an abbreviated version!
For detailed information about tryptophan 2,3-dioxygenase, go to the full flat file.

Word Map on EC 1.13.11.11

Reaction

L-tryptophan
+
O2
=
N-formyl-L-kynurenine

Synonyms

33737, BRAFLDRAFT_210874, C28H8.11, hTDO, IDO-1, IDO-2, TDO, TDO2, TDOa, v1g157887, vCG5163, XcTDO

ECTree

     1 Oxidoreductases
         1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
             1.13.11 With incorporation of two atoms of oxygen
                1.13.11.11 tryptophan 2,3-dioxygenase

Systematic Name

Systematic Name on EC 1.13.11.11 - tryptophan 2,3-dioxygenase

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SYSTEMATIC NAME
IUBMB Comments
L-tryptophan:oxygen 2,3-oxidoreductase (decyclizing)
A protohemoprotein. In mammals, the enzyme appears to be located only in the liver. This enzyme, together with EC 1.13.11.52, indoleamine 2,3-dioxygenase, catalyses the first and rate-limiting step in the kynurenine pathway, the major pathway of tryptophan metabolism [5]. The enzyme is specific for tryptophan as substrate, but is far more active with L-tryptophan than with D-tryptophan [2].