Mechanism-Based Design of 3-Amino-4-Halocyclopentenecarboxylic Acids as Inactivators of GABA Aminotransferase
作者:Sida Shen、Peter F. Doubleday、Pathum M. Weerawarna、Wei Zhu、Neil L. Kelleher、Richard B. Silverman
DOI:10.1021/acsmedchemlett.9b00672
日期:2020.10.8
Aminotransferases are pyridoxal 5′-phosphate-dependent enzymes that catalyze reversible transamination reactions between an amino acid and an α-keto acid, playing a critical role in cellular nitrogen metabolism. It is evident that γ-aminobutyric acid aminotransferase (GABA-AT), which balances the levels of inhibitory and excitatory neurotransmitters, has emerged as a promising therapeutic target for
氨基转移酶是吡哆醛 5'-磷酸依赖性酶,可催化氨基酸和 α-酮酸之间的可逆转氨反应,在细胞氮代谢中起关键作用。显然,平衡抑制性和兴奋性神经递质水平的γ-氨基丁酸氨基转移酶(GABA-AT)已成为基于机制灭活剂(MBIs)的癫痫和可卡因成瘾的有希望的治疗靶点。在这项工作中,我们建立了一种使用计算模拟、有机合成、生化评估和质谱分析的综合方法,以促进我们对 MBI 的设计和机理研究,从而确定了一种新的基于环戊烯的类似物(6a),与母体化合物 (1 R ,3 S ,4 S )-3-amino-4-fluorocyclopentane carboxy acid ( FCP , 4 )相比,作为 GABA-AT 的灭活剂的效率提高 25 倍。