Synthesis, homology modeling, molecular docking, dynamics, and antifungal screening of new 4-hydroxycoumarin derivatives as potential chitinase inhibitors
作者:Rasha Z. Batran、Mohammed A. Khedr、Nehad A. Abdel Latif、Abeer A. Abd El Aty、Abeer N. Shehata
DOI:10.1016/j.molstruc.2018.11.099
日期:2019.3
was carried out using the built homology models of specified fungal species and the top ranked molecules with promising binding affinity were subjected to further molecular dynamic simulation to evaluate their binding stability. The top compounds were then tested in vitro against three phytopathogenic fungi, including Fusarium solani, Fusarium oxysporium and Aspergillus niger in addition to three candida
摘要 几丁质酶活性的抑制对于开发新型抗真菌剂具有重要意义。在这里,我们探索了 4-羟基香豆素作为抑制几丁质酶的新型天然产物衍生支架。合成了一系列新的 4-羟基香豆素衍生物,在 3 位含有希夫碱基基序,并通过计算预测几丁质酶结合亲和力。利用构建的特定真菌物种的同源模型进行对接模拟研究,并对具有良好结合亲和力的排名靠前的分子进行进一步的分子动力学模拟,以评估其结合稳定性。然后针对三种植物病原真菌在体外测试了顶级化合物,包括 Fusarium solani、Fusarium oxysporium 和 Aspergillus niger 以及三种念珠菌,包括白色念珠菌、热带念珠菌和克柔念珠菌。进一步评估活性抗真菌候选物的几丁质酶抑制作用。大多数测试的化合物显示出有希望的抗真菌作用。2,4-二氯苯基席夫碱 2e 对大多数测试的真菌和酵母表现出广泛的抗真菌活性,而 3-氟苯基席夫碱 2a 显示出最高的抗念珠菌作用。席夫碱