Molecular interaction of novel benzothiazolyl triazolium analogues with calf thymus DNA and HSA-their biological investigation as potent antimicrobial agents
作者:Swetha K. Maddili、Ramesh Katla、Vijaya Kumar Kannekanti、Naveen Kumar Bejjanki、Balaraju Tuniki、Cheng-He Zhou、Himabindu Gandham
DOI:10.1016/j.ejmech.2018.02.056
日期:2018.4
modelling studies with good docking score showed that hydrophobic interactions as well as hydrogen bonds played a significant role in the interaction of compound 5q with HSA. In addition, the cytotoxic investigation carried out on four different cancerous cell lines (3 human cell lines and 1 murine cell lines) by MTT assay presented that compound 5n is active against MDA cell lines with IC50 values less than
通过光谱应用以及在人血清白蛋白(HSA)结合位点I的亚域IIA上的分子对接研究,探索了小牛胸腺DNA与作为有效抗菌剂的合成苯并噻唑基三唑鎓衍生物之间的结合行为。与临床诺氟沙星,绿霉素和氟康唑相比,大多数合成衍生物都表现出显着的抗菌抑制作用。尤其是,化合物5q表现出有效的抗枯草芽孢杆菌,抗大肠杆菌,抗伤寒沙门氏菌和抗铜绿假单胞菌活性,且MIC值较低,为2-8μg/ mL,相对于参考药物而言相对较好。与小牛胸腺DNA相互作用的初步研究表明,活性最强的化合物5q可以有效地插入DNA中,形成5q-DNA复合物。进一步的研究表明,人血清白蛋白可以有效地转运化合物5q,而具有良好对接得分的分子模型研究表明,疏水性相互作用以及氢键在化合物5q与HSA的相互作用中起着重要作用。另外,通过MTT测定法对四种不同的癌细胞系(3种人类细胞系和1种鼠类细胞系)进行的细胞毒性研究表明,化合物5n对MDA细胞系具有活性,IC