Development of Small-Molecule Cryptochrome Stabilizer Derivatives as Modulators of the Circadian Clock
作者:Jae Wook Lee、Tsuyoshi Hirota、Anupriya Kumar、Nam-Jung Kim、Stephan Irle、Steve A. Kay
DOI:10.1002/cmdc.201500260
日期:2015.9
underpinnings of the circadian clock. We previously discovered a carbazole derivative, KL001 (N‐(3‐(9H‐carbazol‐9‐yl)‐2‐hydroxypropyl)‐N‐(furan‐2‐ylmethyl)methanesulfonamide), as a stabilizer of the clock protein cryptochrome (CRY). Herein we describe an extensive structure–activity relationship analysis of KL001 derivatives leading to the development of a highly active derivative: 2‐(9H‐carbazol‐9‐
小分子探针在加深我们对生物钟的分子基础的理解中起着重要作用。我们先前发现了咔唑衍生物KL001(N-(3-(9 H-咔唑-9-基)-2-羟丙基)-N-(呋喃-2-基甲基)甲磺酰胺)作为时钟蛋白隐色染料的稳定剂(哭)。在这里,我们描述了导致高活性衍生物发展的KL001衍生物的广泛的结构-活性关系分析:2-(9 H-咔唑-9-yl)-N-(2-氯-6-氰基苯基)乙酰胺(KL044)。随后的3D-QSAR分析确定了KL001衍生物的关键特征,并提供了其与CRY相互作用的分子水平理解。富电子咔唑,酰胺/羟基连接基,磺酰基和吸电子腈部分有助于提高生物活性。与Ser394和His357的氢键相互作用以及与Trp290的更强的CH-π相互作用使KL044比KL001更好。KL044延长了昼夜节律周期,抑制了Per2活性,并在报告基因检测中稳定了CRY,其效力比KL001高约十倍。总之,KL044是一种功