Recombinant Human Indoleamine 2,3-dioxygenase 1 (IDO1)

Uniprot Id

P14902

Target Species

Human

Target Name

IDO1

Target Full Name

Indoleamine 2,3-dioxygenase 1

Target 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.

Target Subcellular Location

Cytoplasm, cytosol.

Target Protein Families

Indoleamine 2,3-dioxygenase family

Target Tissue Specificity

Expressed in mature dendritic cells located in lymphoid organs (including lymph nodes, spleen, tonsils, Peyers's patches, the gut lamina propria, and the thymic medulla), in some epithelial cells of the female genital tract, as well as in endothelial cell

Target Research Area

Cardiovascular

Target Synonyms

3-dioxygenase; I23O1_HUMAN; IDO 1; IDO; IDO-1; IDO1; INDO; indolamine 2,3 dioxygenase; Indole 2 3 dioxygenase; indoleamine 2 3 dioxygenase 1; indoleamine 2 3 dioxygenase; Indoleamine 2,3-dioxygenase 1; Indoleamine pyrrole 2 3 dioxygenase ; Indoleamine-pyrrole 2

Target Background

This gene encodes indoleamine 2, 3-dioxygenase (IDO) - a heme enzyme that catalyzes the first and rate-limiting step in tryptophan catabolism to N-formyl-kynurenine. This enzyme acts on multiple tryptophan substrates including D-tryptophan, L-tryptophan, 5-hydroxy-tryptophan, tryptamine, and serotonin. This enzyme is thought to play a role in a variety of pathophysiological processes such as antimicrobial and antitumor defense, neuropathology, immunoregulation, and antioxidant activity. Through its expression in dendritic cells, monocytes, and macrophages this enzyme modulates T-cell behavior by its peri-cellular catabolization of the essential amino acid tryptophan.