MGP Database

MGP006714

UniProt Annotations

Entry Information
Gene Nameindoleamine 2,3-dioxygenase 2
Protein EntryI23O2_HUMAN
UniProt IDQ6ZQW0
SpeciesHuman
Comments
Comment typeDescription
Alternative ProductsEvent=Alternative splicing; Named isoforms=2; Name=1; IsoId=Q6ZQW0-1; Sequence=Displayed; Name=2; IsoId=Q6ZQW0-2; Sequence=VSP_024857, VSP_024858, VSP_024859;
Catalytic ActivityL-tryptophan + O(2) = N-formyl-L-kynurenine. {ECO:0000269|PubMed:17671174}.
CofactorName=heme; Xref=ChEBI:CHEBI:30413; Evidence={ECO:0000250}; Note=Binds 1 heme group per subunit. {ECO:0000250};
Enzyme RegulationActivity is inhibited by D-1MT (1-methyl-D- tryptophan) and MTH-trp (methylthiohydantoin-DL-tryptophan) but not L-1MT (1-methyl-L-tryptophan). {ECO:0000269|PubMed:17671174}.
FunctionCatalyzes the first and rate-limiting step in the kynurenine pathway of tryptophan catabolism. {ECO:0000269|PubMed:17671174}.
PathwayAmino-acid degradation; L-tryptophan degradation via kynurenine pathway; L-kynurenine from L-tryptophan: step 1/2.
SimilarityBelongs to the indoleamine 2,3-dioxygenase family. {ECO:0000305}.
Tissue SpecificityDetected in liver, small intestine, spleen, placenta, thymus, lung, brain, kidney, and colon. {ECO:0000269|PubMed:17671174}.
Web ResourceName=Atlas of Genetics and Cytogenetics in Oncology and Haematology; URL="http://atlasgeneticsoncology.org/Genes/IDO2ID44387ch8p11.html";
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