Human IDO1 (NP_002155, 1 - 403 a.a.) full length recombinant protein with His tag expressed in Escherichia coli expression system
Host:
Escherichia coli
Theoretical MW (kDa):
47.7
Form:
Liquid
Preparation Method:
Escherichia coli expression system
Purity:
> 90% by SDS-PAGE
Endotoxin Level:
< 1 EU/ug
Activity:
Specific activity is > 300 pmol/min/ug, and is defined as the amount of enzyme that hydrolyze 1.0 pmole of L-Tryptophan to N-formyl-L-kynurenine per minute at pH 6.5 at 25°C.
Quality Control Testing:
SDS-PAGE Stained with Coomassie Blue
3 ug SDS-PAGE under reducing condition and visualized by coomassie blue stain.
Recommend Usage:
SDS-PAGE The optimal working dilution should be determined by the end user.
Storage Buffer:
In 20 mM Tris-HCl, 0.15 M NaCl, 1 mM DTT, pH 8.0 (20% glycerol)
Storage Instruction:
Store at 4°C for one week. For long term storage store at -20°C. Aliquot to avoid repeated freezing and thawing.
Gamma-interferon (IFNG; MIM 147570) has an antiproliferative effect on many tumor cells and inhibits intracellular pathogens such as Toxoplasma and Chlamydia, at least partly because of the induction of indoleamine 2,3-dioxygenase (INDO; EC 1.13.11.52). This enzyme catalyzes the degradation of the essential amino acid L-tryptophan to N-formyl-kynurenine.[supplied by OMIM