Plasmepsin Inhibitory Activity and Structure-Guided Optimization of a Potent Hydroxyethylamine-Based Antimalarial Hit
作者:Kristaps Jaudzems、Kaspars Tars、Gundars Maurops、Natalija Ivdra、Martins Otikovs、Janis Leitans、Iveta Kanepe-Lapsa、Ilona Domraceva、Ilze Mutule、Peteris Trapencieris、Michael J. Blackman、Aigars Jirgensons
DOI:10.1021/ml4004952
日期:2014.4.10
Antimalarial hit 1 SR (TCMDC-134674) identified in a GlaxoSmithKline cell based screening campaign was evaluated for inhibitory activity against the digestive vacuole plasmepsins (Plm I, II, and IV). It was found to be a potent Plm IV inhibitor with no selectivity over Cathepsin D. A cocrystal structure of 1 SR bound to Plm II was solved, providing structural insight for the design of more potent and
评价了在基于葛兰素史克细胞的筛选活动中鉴定出的抗疟疾打击1 SR(TCMDC-134674)对消化液空泡纤溶酶(Plm I,II和IV)的抑制活性。已发现它是一种有效的Plm IV抑制剂,对组织蛋白酶D无选择性。解决了与Plm II结合的1 SR共晶体结构,为设计更有效和选择性的类似物提供了结构上的见识。结构指导的优化导致结构简化的类似物17和18被鉴定为红细胞中的纤溶酶Plm IV活性和恶性疟原虫生长的低纳摩尔抑制剂。