Function | Catalyzes the first and rate limiting step of the catabolism of the essential amino acid tryptophan along the kynurenine pathway. Involved in the peripheral immune tolerance, contributing to maintain homeostasis by preventing autoimmunity or immunopathology that would result from uncontrolled and overreacting immune responses. Tryptophan shortage inhibits T lymphocytes division and accumulation of tryptophan catabolites induces T-cell apoptosis and differentiation of regulatory T-cells. Acts as a suppressor of anti-tumor immunity. Limits the growth of intracellular pathogens by depriving tryptophan. Protects the fetus from maternal immune rejection. |
Peptide Name | Indoleamine 2 -3-Dioxygenase 1Ido-1Indoleamine-Pyrrole 2 -3-Dioxygenase |
Database Links | Reactome: R-HSA-71240 |
Cellular Localisation | CytoplasmCytosol |
Alternative Peptide Names | Indoleamine 2 -3-Dioxygenase 1 proteinIdo-1 proteinIndoleamine-Pyrrole 2 -3-Dioxygenase proteinIDO1 proteinIDO proteinINDO protein |
Information sourced from Uniprot.org