virion attachment to host cell pilus / protein secretion by the type II secretion system / type II protein secretion system complex / pilus / virion component / cell adhesion / membrane 類似検索 - 分子機能
Assembly protein / Phage maturation protein / Bacterial general secretion pathway protein G-type pilin / Fimbrial protein pilin / Pilin (bacterial filament) / Prokaryotic N-terminal methylation site. / Prokaryotic N-terminal methylation motif / Prokaryotic N-terminal methylation site / Pilin-like 類似検索 - ドメイン・相同性
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
1R01GM141659
米国
引用
ジャーナル: Nat Commun / 年: 2024 タイトル: Structural basis of Acinetobacter type IV pili targeting by an RNA virus. 著者: Ran Meng / Zhongliang Xing / Jeng-Yih Chang / Zihao Yu / Jirapat Thongchol / Wen Xiao / Yuhang Wang / Karthik Chamakura / Zhiqi Zeng / Fengbin Wang / Ry Young / Lanying Zeng / Junjie Zhang / 要旨: Acinetobacters pose a significant threat to human health, especially those with weakened immune systems. Type IV pili of acinetobacters play crucial roles in virulence and antibiotic resistance. ...Acinetobacters pose a significant threat to human health, especially those with weakened immune systems. Type IV pili of acinetobacters play crucial roles in virulence and antibiotic resistance. Single-stranded RNA bacteriophages target the bacterial retractile pili, including type IV. Our study delves into the interaction between Acinetobacter phage AP205 and type IV pili. Using cryo-electron microscopy, we solve structures of the AP205 virion with an asymmetric dimer of maturation proteins, the native Acinetobacter type IV pili bearing a distinct post-translational pilin cleavage, and the pili-bound AP205 showing its maturation proteins adapted to pilin modifications, allowing each phage to bind to one or two pili. Leveraging these results, we develop a 20-kilodalton AP205-derived protein scaffold targeting type IV pili in situ, with potential for research and diagnostics.