## Abstract Human indoleamine 2,3‐dioxygenase (hIDO), a monomeric heme enzyme, catalyzes the oxidative degradation of L‐tryptophan (L‐Trp) and other indoleamine derivatives. Its activity follows typical Michaelis–Menten behavior only for L‐Trp concentrations up to 50 μM; a further increase in the c
Indoleamine 2,3-dioxygenase in intestinal immunity and inflammation
✍ Scribed by Bobby J. Cherayil
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 119 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1078-0998
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✦ Synopsis
Indoleamine 2,3-dioxygenase (IDO) is a tryptophan catabolizing enzyme that has a number of immunoregulatory effects. It is expressed at high levels in the gastrointestinal tract, particularly in the small intestine, and has been implicated in the control of intestinal inflammation. However, its precise role in intestinal immunity is not well understood. This review will summarize the current state of knowledge about IDO function, particularly as it pertains to inflammatory responses in the gut.
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