发明名称 |
Screening Method |
摘要 |
Provided is a high-throughput coupled enzyme method of screening for a tryptophan-2,3-dioxygenase (TDO) inhibitor compound and/or an indoleamine-2,3-dioxygenase (IDO) inhibitor compound, which method comprises: (a) reacting tryptophan with isolated IDO and/or isolated TDO in the presence of a test compound to form N-formylkynurenine; (b) reacting N-formylkynurenine from step (a) with isolated kynurenine formamidase to form kynurenine; and (c) detecting the kynurenine produced in step (b) and determining whether the test compound is a TDO and/or an IDO inhibitor compound or not from the presence or absence or quantity of the detected kynurenine, wherein step (a) is conducted in the presence of a reducing system suitable for converting IDO and/or TDO from the Fe3+ to the Fe2+ state, and which does not prevent the formation of kynurenine in step (c). |
申请公布号 |
US2017009271(A1) |
申请公布日期 |
2017.01.12 |
申请号 |
US201415105615 |
申请日期 |
2014.12.18 |
申请人 |
IOMET PHARMA LTD |
发明人 |
Hunter Bill;McElroy Stuart;Wise Alan |
分类号 |
C12Q1/26 |
主分类号 |
C12Q1/26 |
代理机构 |
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代理人 |
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主权项 |
1. A high-throughput coupled enzyme method of screening for a tryptophan-2,3-dioxygenase (TDO) inhibitor compound and/or an indoleamine-2,3-dioxygenase (IDO) inhibitor compound, which method comprises:
(a) reacting tryptophan with isolated IDO and/or isolated TDO in the presence of a test compound to form N-formylkynurenine; (b) reacting N-formylkynurenine from step (a) with isolated kynurenine formamidase to form kynurenine; and (c) detecting the kynurenine produced in step (b) and determining whether the test compound is a TDO and/or an IDO inhibitor compound or not from the presence or absence or quantity of the detected kynurenine,wherein step (a) is conducted in the presence of a reducing system suitable for converting IDO and/or TDO from the Fe3+ to the Fe2+ state, and which does not prevent the formation of kynurenine in step (c). |
地址 |
Edinburgh GB |