Structure-aided drug development of potential neuraminidase inhibitors against pandemic H1N1 exploring alternate binding mechanism
作者:Khushboo D. Malbari、Anand S. Chintakrindi、Lata R. Ganji、Devanshi J. Gohil、Sweta T. Kothari、Mamata V. Joshi、Meena A. Kanyalkar
DOI:10.1007/s11030-019-09919-6
日期:2019.11
e. in 430-loop cavity, resulted in displacement of sialic acid from its native pose in the catalytic cavity. The favourable analogues were synthesized and evaluated for the cytotoxicity and cytopathic effect inhibition by pandemic H1N1 virus. All the designed analogues resulting in displacement of sialic acid suggested alternate binding mechanism. Overall results indicated that aurones can be measured
摘要致病性H1N1流感病毒的变异率是一个威胁。对目前竞争性神经氨酸酶抑制剂如奥司他韦和扎那米韦的耐药性的出现,归因于对替代方法的需求。用替代方法设计和合成新的类似物对于鉴定潜在的神经氨酸酶抑制剂尤其重要,该抑制剂不仅具有更好的抗流感活性,而且还可以抵抗耐药性的挑战。五个系列的支架,分别是金光子(1a - 1e),嘧啶类似物(2a - 2b),肉桂酸类似物(3a - 3k),查耳酮(4a - 4h)和肉桂酸键(5a – 5c),是基于针对大流行H1N1病毒的虚拟筛选而设计的。分子建模研究表明,设计的类似物占据了神经氨酸酶的430环腔。唾液酸在被对接的类似物所占据的活性位点中对接,即在430环腔中,导致唾液酸从其在催化腔中的天然姿势中置换出来。合成了有利的类似物,并评估了大流行H1N1病毒的细胞毒性和抑制细胞病变的作用。所有设计的导致唾液酸置换的类似物均提示了另一种结合机制。总体结果表明,作为