Structure–Activity Relationship of Semicarbazone EGA Furnishes Photoaffinity Inhibitors of Anthrax Toxin Cellular Entry
作者:Michael E. Jung、Brian T. Chamberlain、Chi-Lee C. Ho、Eugene J. Gillespie、Kenneth A. Bradley
DOI:10.1021/ml400486k
日期:2014.4.10
unknown, and a structure-activity relationship study was conducted in order to develop a strategy for target identification. A compound with midnanomolar potency was identified (2), and three photoaffinity labels were synthesized (3-5). For this series, the expected photochemistry of the phenyl azide moiety is a more important factor than the IC50 of the photoprobe in obtaining a successful photolabeling
EGA 1通过抑制水泡运输来防止多种病毒和细菌毒素进入哺乳动物细胞。1的细胞靶标是未知的,进行了结构-活性关系研究以开发用于靶标鉴定的策略。鉴定出具有中纳米分子效力的化合物(2),并合成了三个光亲和标记(3-5)。对于该系列,在获得成功的光标记事件方面,苯叠氮基部分的预期光化学是比光探针的IC50更重要的因素。虽然3是该系列中最有效的可逆抑制剂,但在紫外线照射后,它没有为细胞提供抗炭疽致死毒素(LT)的保护。相反,在标准分析中生物活性较弱的5