商品编号


72049



品牌


Bpsbioscience



公司


BPS Bioscience Inc.



公司分类


New Products



Size

384 wells

商品信息













Background:
L-tryptophan (L-Trp) is an essential amino acid necessary for protein synthesis in mammalian cells and the L-Trp to kynurenine (Kyn) pathway is firmly established as a key regulator of innate and adaptive immunity. Catabolism of L-Trp to Kyn maintains an immunosuppressive microenvironment by starving immune cells of L-Trp and releasing degradation products of L-Trp that have immunosuppressive functions. Tryptophan 2,3 dioxygenase (TDO), a rate limiting enzymes in this pathway, is upregulated in many tumors, providing cancer cells with an avenue for immune evasion.




Description:
The
TDO Fluorogenic Inhibitor Screening Assay Kit
is designed to measure enzyme inhibition of tryptophan 2,3-dioxygenase (
TDO
). The
TDO Fluorogenic Inhibitor Screening Assay Kit
is simple to use and detects fluorescence at long wavelengths, which minimizes potential errors due to compound interference. In the assay, the inhibitor and enzyme are added to a sample containing L-Trp substrate. After a 1 hour incubation at room temperature, the fluorescence solution is added and incubated at 37°C for four hours. Activity is measured by re
ADI
ng sample fluorescence at &lam
BD
a;=510 nm following excitation of the reaction product at &lam
BD
a;=400 nm.




Synonym(s):
TDO2, tryptophan 2,3 dioxygenase




Supplied As:
The kit comes in a convenient format, with enough reaction solution and enzyme to perform a total of 400 reactions.




Contraindications:
DMSO >0.5%, strong acids or bases, ionic detergents, high salt. Warning: the Fluorescence Solution contains a component that is known to be a skin and eye irritant. Use caution and appropriate personal protective equipment when handling this component.




Format:

COMPONENTS:






Instructions for use:
See assay kit data sheet for detailed protocol




Storage / St
ABI
lity:
Stable at least 6 months from date of receipt, when stored as directed. Kit components require different storage conditions. Be sure to store each component at the proper temperature upon arrival.




Application(s):
Useful for the study of TDO enzymology, inhibitor screening, and selectivity profiling.




Reference(s):

Seegers, N.,
et al. J. Biomol. Screen.
2014.
19(9)
:1266-74.




Warning(s):
Avoid freeze/thaw cycles.




Scientific Category:
Immunotherapy




Product Type:
Assay Kit




Data shown is lot-specific.
Contact us
for specific information on other lots.