Picolinic acids as β-exosite inhibitors of botulinum neurotoxin A light chain.

Picolinic acids as β-exosite inhibitors of botulinum neurotoxin A light chain.
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DOI:
10.1039/c6cc06749b
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发表时间:
2016-10-13
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Janda KD
Janda KD
中科院分区:
其他
文献类型:
--
作者:
Bremer PT;Xue S;Janda KD

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在开发A型肉毒神经毒素轻链小分子抑制剂(BONT/A LC)的过程中,发现了取代的吡啶甲酸。对吡啶甲酸支架表面活性的广泛研究发现,5-(1-丁基-4-氯-1H-吲哚-2-基)吡啶甲酸对BONT/A具有低的微摩尔活性。动力学和对接研究表明,CBIP与β-Exosite结合:这是LC上一个很大程度上未被探索的位置,对于肉毒杆菌中毒的治疗具有治疗意义。一系列新型取代吡啶甲酸对肉毒杆菌神经毒素A轻链的β-Exosite具有低的微摩尔抑制作用。
In developing small-molecule inhibitors of botulinum neurotoxin serotype A light chain (BoNT/A LC), substituted picolinic acids were identified. Extensive investigation into the SAR of the picolinic acid scaffold revealed 5-(1-butyl-4-chloro-1H-indol-2-yl)picolinic acid (CBIP), which possessed low micromolar activity against BoNT/A. Kinetic and docking studies demonstrated binding of CBIP to the β-exosite: a largely unexplored site on the LC that holds therapeutic relevance for botulism treatment. A series of novel substituted picolinic acids demonstrated low micromolar inhibition of botulinum neurotoxin A light chain at the β-exosite.
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