Characterization and structure of the human lysine-2-oxoglutarate reductase domain, a novel therapeutic target for treatment of glutaric aciduria type 1.
Characterization and structure of the human lysine-2-oxoglutarate reductase domain, a novel therapeutic target for treatment of glutaric aciduria type 1.
复制标题
人赖氨酸-2-氧化戊二酸还原酶结构域的表征和结构,这是治疗 1 型戊二酸尿症的新治疗靶点。
作者:
In humans, a single enzyme 2-aminoadipic semialdehyde synthase (AASS) catalyses the initial two critical reactions in the lysine degradation pathway. This enzyme evolved to be a bifunctional enzyme with both lysine-2-oxoglutarate reductase (LOR) and saccharopine dehydrogenase domains (SDH). Moreover, AASS is a unique drug target for inborn errors of metabolism such as glutaric aciduria type 1 that arise from deficiencies downstream in the lysine degradation pathway. While work has been done to elucidate the SDH domain structurally and to develop inhibitors, neither has been done for the LOR domain. Here, we purify and characterize LOR and show that it is activated by alkylation of cysteine 414 by N-ethylmaleimide. We also provide evidence that AASS is rate-limiting upon high lysine exposure of mice. Finally, we present the crystal structure of the human LOR domain. Our combined work should enable future efforts to identify inhibitors of this novel drug target.
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影响因子:
2.9
作者:
Andi, Babak;Xu, Hengyu;West, Ann H.
通讯作者:
West, Ann H.
影响因子:
2.9
作者:
Kumar, Vidya Prasanna;Thomas, Leonard M.;West, Ann H.
通讯作者:
West, Ann H.
影响因子:
4.4
作者:
Li M;Li C;Allen A;Stanley CA;Smith TJ
通讯作者:
Smith TJ
影响因子:
3.5
作者:
Houten, Sander M.;Herrema, Hilde;Wanders, Ronald J. A.
通讯作者:
Wanders, Ronald J. A.
影响因子:
4.1
作者:
Drynan, L;Quant, PA;Zammit, VA
通讯作者:
Zammit, VA