Gene Information
Gene NameIDO2
OrganismHomo sapiens (Human)
Gene Length420
Protein NamesIndoleamine 2,3-dioxygenase 2 (IDO-2) (EC 1.13.11.-) (Indoleamine 2,3-dioxygenase-like protein 1) (Indoleamine-pyrrole 2,3-dioxygenase-like protein 1)
Target Nameindoleamine 2,3-dioxygenase 2
Target TypePatented-recorded target
Gene Age36 ( ENSG00000188676 )
Evolutionary StageOpisthokonta
AlphaFoldDBQ6ZQW0
Gene CardIDO2
Uniprot IDQ6ZQW0
PfamPF01231
In ASDno
Allosteric Predictionno (-1.00029175)
Ortholog in AnimalsAlpaca_ IDO2 ( ortholog_one2one )
Dog_ IDO2 ( ortholog_one2one )
GuineaPig_ IDO2 ( ortholog_one2one )
Macaque_ IDO2 ( ortholog_one2one )
Mouse_ Ido2 ( ortholog_one2one )
Pig_ IDO2 ( ortholog_one2one )
Rat_ Ido2 ( ortholog_one2one )
Rabbit_ IDO2 ( ortholog_one2one )
OhnologsNA
ParalogsNA
Tissueplacenta
Tissue SpecificityDetected in liver, small intestine, spleen, placenta, thymus, lung, brain, kidney, and colon (PubMed:17671174). Also expressed at low level in testis and thyroid. Not expressed in the majority of human tumor samples (>99%) (PubMed:25691885). {ECO:0000269|PubMed:17671174, ECO:0000303|PubMed:25691885}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs10109853 
Subcellular location [CC]NA
Mouse PG classificationNA
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