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A putative amino acid transporter determines sensitivity to the two-peptide bacteriocin plantaricin JK

机译:推测的氨基酸转运蛋白决定了对两肽细菌素cin那霉素JK的敏感性

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Abstract Lactobacillus plantarum produces a number of antimicrobial peptides (bacteriocins) that mostly target closely related bacteria. Although bacteriocins are important for the ecology of these bacteria, very little is known about how the peptides target sensitive cells. In this work, a putative membrane protein receptor of the two-peptide bacteriocin plantaricin JK was identified by comparing Illumina sequence reads from plantaricin JK-resistant mutants to a crude assembly of the sensitive wild-type Weissella viridescens genome using the polymorphism discovery tool VAAL. Ten resistant mutants harbored altogether seven independent mutations in a gene encoding an APC superfamily protein with 12 transmembrane helices. The APC superfamily transporter thus is likely to serve as a target for plantaricin JK on sensitive cells.
机译:摘要植物乳杆菌可产生多种抗菌肽(细菌素),这些肽主要针对密切相关的细菌。尽管细菌素对于这些细菌的生态学很重要,但对于肽如何靶向敏感细胞的了解甚少。在这项工作中,通过使用多态性发现工具VAAL,比较了来自耐植物霉素JK的突变体的Illumina序列读数与敏感的野生型魏氏菌基因组的粗装配,鉴定了两肽细菌素植物霉素JK的假定膜蛋白受体。十个抗性突变体在编码具有12个跨膜螺旋的APC超家族蛋白的基因中总共包含七个独立突变。因此,APC超家族转运蛋白很可能充当敏感细胞上plant那霉素JK的靶标。

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