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Transcriptomic and proteomic profiling response of methicillin-resistantStaphylococcus aureus(MRSA) to a novel bacteriocin, plantaricin GZ1-27 and its inhibition of biofilm formation

机译:甲氧西林 - 抵抗含有甲基硫脲抗性的转录组和蛋白质组学分析响应于新型菌丝,Plantaricin GZ1-27及其对生物膜形成的抑制作用

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摘要

Methicillin-resistantStaphylococcus aureus(MRSA) has become a worrisome superbug, due to its wide distribution and multidrug resistance. To characterize effects of a newly identified plantaricin GZ1-27 on MRSA, transcriptomic and proteomic profiling of MRSA strain ATCC43300 was performed in response to sub-MIC (16 mu g/mL) plantaricin GZ1-27 stress. In total, 1090 differentially expressed genes (padj < 0.05) and 418 differentially expressed proteins (fold change > 1.2,p < 0.05) were identified. Centralized protein expression clusters were predicted in biological functions (biofilm formation, DNA replication and repair, and heat-shock) and metabolic pathways (purine metabolism, amino acid metabolism, and biosynthesis of secondary metabolites). Moreover, a capacity of inhibition MRSA biofilm formation and killing biofilm cells were verified using crystal violet staining, scanning electron microscopy, and confocal laser-scanning microscopy. These findings yielded comprehensive new data regarding responses induced by plantaricin and could inform evidence-based methods to mitigate MRSA biofilm formation.
机译:由于其广泛的分布和多药抗性,甲氧西林抗性抗滑雪基神经金黄色葡萄球菌(MRSA)已成为一种令人担忧的超级效果。为了表征在MRSA对MRSA的新发现的植物霉素GZ1-27的影响,MRSA菌株ATCC43300的转录组和蛋白质组学分析是响应于亚麦米麦麦蛋白GZ1-27应力进行的。鉴定了总,鉴定了1090个差异表达基因(PADJ <0.05)和418个差异表达蛋白(折叠变化> 1.2,P <0.05)。在生物学功能(生物膜形成,DNA复制和修复和热休克)和代谢途径(嘌呤代谢,氨基酸代谢和二次代谢物生物合成)中预测集中蛋白表达簇。此外,使用晶体紫染色,扫描电子显微镜和共聚焦激光扫描显微镜验证抑制mRSA生物膜形成和杀死生物膜细胞的容量。这些发现产生了有关Purtoraricin诱导的反应的综合新数据,可以告知基于循证的方法来减轻MRSA生物膜形成。

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