Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
D-tryptophan + O2 | Mus musculus | - |
N-formyl-D-kynurenine | - |
? | |
D-tryptophan + O2 | Mus musculus C57BL/6 | - |
N-formyl-D-kynurenine | - |
? | |
L-tryptophan + O2 | Mus musculus | - |
N-formyl-L-kynurenine | - |
? | |
L-tryptophan + O2 | Mus musculus C57BL/6 | - |
N-formyl-L-kynurenine | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Mus musculus | P28776 | - |
- |
Mus musculus C57BL/6 | P28776 | - |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
liver | - |
Mus musculus | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
D-tryptophan + O2 | - |
Mus musculus | N-formyl-D-kynurenine | - |
? | |
D-tryptophan + O2 | - |
Mus musculus C57BL/6 | N-formyl-D-kynurenine | - |
? | |
L-tryptophan + O2 | - |
Mus musculus | N-formyl-L-kynurenine | - |
? | |
L-tryptophan + O2 | - |
Mus musculus C57BL/6 | N-formyl-L-kynurenine | - |
? | |
additional information | although the kcat of indoleamine-2,3-dioxygenase (IDO) is similar for D-Trp and L-Trp, the Km of IDO is approximately 170fold higher for L-Trp than that for D-Trp | Mus musculus | ? | - |
? | |
additional information | although the kcat of indoleamine-2,3-dioxygenase (IDO) is similar for D-Trp and L-Trp, the Km of IDO is approximately 170fold higher for L-Trp than that for D-Trp | Mus musculus C57BL/6 | ? | - |
? |
General Information | Comment | Organism |
---|---|---|
metabolism | comparison of contribution percentage of tryptophan 2,3-dioxygenase (TDO, EC 1.13.11.11) and indoleamine 2,3-dioxygenase (IDO) to the conversion of L-tryptophan, the calculated percentage conversions indicats that TDO and IDO oxidize 70% and 30%, respectively, of the dietary L-tryptophan. The amount of D-Trp converted to nicotinamide via indole-3-pyruvic acid (IPA) is very low, this amount of D-Trp is converted to L-Trp, which is primarily used for protein synthesis rather than catabolism via the Kyn biosynthesis pathway in mice | Mus musculus |
physiological function | the enzyme is involved in nicotinamide biosynthesis. Comparison of contribution percentage of tryptophan 2,3-dioxygenase (TDO, EC 1.13.11.11) and indoleamine 2,3-dioxygenase (IDO) to the conversion of L-tryptophan, the calculated percentage conversions indicats that TDO and IDO oxidize 70% and 30%, respectively, of the dietary L-tryptophan. The amount of D-Trp converted to nicotinamide via indole-3-pyruvic acid (IPA) is very low, this amount of D-Trp is converted to L-Trp, which is primarily used for protein synthesis rather than catabolism via the Kyn biosynthesis pathway in mice | Mus musculus |