Muniz Seif Elias Jorge, Icimoto Marcelo Yudi, da Silva Junior Pedro Ismael
Postgraduate Program in Molecular Biology, Federal University of São Paulo, São Paulo, Brazil.
Laboratory for Applied Toxinology (LETA), Center of Toxins, Immune-Response and Cell Signaling (CETICS/CEPID), Butantan Institute, São Paulo, Brazil.
In Silico Pharmacol. 2023 Apr 25;11(1):11. doi: 10.1007/s40203-023-00149-1. eCollection 2023.
The emergence of resistant bacteria strains against traditional antibiotics and treatments increases each year. Doderlin is a cationic and amphiphilic peptide active against gram-positive, negative and yeast stains. The aim of the present work was prospect potentials receptors associated of antimicrobial activity of Doderlin using in silico bioinformatics tools. To search for potential targets of Doderlin, PharmMapper software was used. Molecular docking between Doderlin and the receptor was performed by PatchDock. Additional interaction and ligand site prediction for each receptor was performed by I-TASSER software. Those PDB Id, 1XDJ (score: 11,746), 1JMH (score: 11,046), 1YR3 (score: 10,578), 1NG3 (score: 10,082) showed highest dock score. Doderlin was found to predicted/real sites co-localize with 1XDJ and 1JMH, enzymes accountable for nitrogenic bases synthesis. The resulting receptor bioprospecting is highly correlated and suggests that Doderlin might act by interfering with DNA metabolism/production of bacteria, altering microorganism homeostasis and growth impairment.
The online version contains supplementary material available at 10.1007/s40203-023-00149-1.
对传统抗生素和治疗方法产生耐药性的细菌菌株每年都在增加。多德林是一种阳离子两亲性肽,对革兰氏阳性、阴性和酵母菌株具有活性。本研究的目的是使用计算机生物信息学工具探索与多德林抗菌活性相关的潜在受体。为了寻找多德林的潜在靶点,使用了PharmMapper软件。通过PatchDock进行多德林与受体之间的分子对接。通过I-TASSER软件对每个受体进行额外的相互作用和配体位点预测。那些PDB编号1XDJ(得分:11,746)、1JMH(得分:11,046)、1YR3(得分:10,578)、1NG3(得分:10,082)显示出最高的对接分数。发现多德林的预测/实际位点与1XDJ和1JMH共定位,这两种酶负责氮碱基合成。由此产生的受体生物勘探具有高度相关性,表明多德林可能通过干扰细菌的DNA代谢/产生、改变微生物内环境稳定和生长受损而起作用。
在线版本包含可在10.1007/s40203-023-00149-1获取的补充材料。