National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)
P41GM103832
米国
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)
U24GM1167
米国
引用
ジャーナル: Nat Commun / 年: 2019 タイトル: Structural basis for the adsorption of a single-stranded RNA bacteriophage. 著者: Ran Meng / Mengqiu Jiang / Zhicheng Cui / Jeng-Yih Chang / Kailu Yang / Joanita Jakana / Xinzhe Yu / Zhao Wang / Bo Hu / Junjie Zhang / 要旨: Single-stranded RNA bacteriophages (ssRNA phages) infect Gram-negative bacteria via a single maturation protein (Mat), which attaches to a retractile pilus of the host. Here we present structures of ...Single-stranded RNA bacteriophages (ssRNA phages) infect Gram-negative bacteria via a single maturation protein (Mat), which attaches to a retractile pilus of the host. Here we present structures of the ssRNA phage MS2 in complex with the Escherichia coli F-pilus, showing a network of hydrophobic and electrostatic interactions at the Mat-pilus interface. Moreover, binding of the pilus induces slight orientational variations of the Mat relative to the rest of the phage capsid, priming the Mat-connected genomic RNA (gRNA) for its release from the virions. The exposed tip of the attached Mat points opposite to the direction of the pilus retraction, which may facilitate the translocation of the gRNA from the capsid into the host cytosol. In addition, our structures determine the orientation of the assembled F-pilin subunits relative to the cell envelope, providing insights into the F-like type IV secretion systems.
1A: Type IV conjugative transfer system pilin TraA 1B: Type IV conjugative transfer system pilin TraA 1C: Type IV conjugative transfer system pilin TraA 1D: Type IV conjugative transfer system pilin TraA 1E: Type IV conjugative transfer system pilin TraA 1F: Type IV conjugative transfer system pilin TraA 1G: Type IV conjugative transfer system pilin TraA 1H: Type IV conjugative transfer system pilin TraA 1I: Type IV conjugative transfer system pilin TraA 1J: Type IV conjugative transfer system pilin TraA 1K: Type IV conjugative transfer system pilin TraA 1L: Type IV conjugative transfer system pilin TraA 1M: Type IV conjugative transfer system pilin TraA 1N: Type IV conjugative transfer system pilin TraA 1O: Type IV conjugative transfer system pilin TraA 2A: Type IV conjugative transfer system pilin TraA 2B: Type IV conjugative transfer system pilin TraA 2C: Type IV conjugative transfer system pilin TraA 2D: Type IV conjugative transfer system pilin TraA 2E: Type IV conjugative transfer system pilin TraA 2F: Type IV conjugative transfer system pilin TraA 2G: Type IV conjugative transfer system pilin TraA 2H: Type IV conjugative transfer system pilin TraA 2I: Type IV conjugative transfer system pilin TraA 2J: Type IV conjugative transfer system pilin TraA 2K: Type IV conjugative transfer system pilin TraA 2L: Type IV conjugative transfer system pilin TraA 2M: Type IV conjugative transfer system pilin TraA 2N: Type IV conjugative transfer system pilin TraA 2O: Type IV conjugative transfer system pilin TraA 3A: Type IV conjugative transfer system pilin TraA 3B: Type IV conjugative transfer system pilin TraA 3C: Type IV conjugative transfer system pilin TraA 3D: Type IV conjugative transfer system pilin TraA 3E: Type IV conjugative transfer system pilin TraA 3F: Type IV conjugative transfer system pilin TraA 3G: Type IV conjugative transfer system pilin TraA 3H: Type IV conjugative transfer system pilin TraA 3I: Type IV conjugative transfer system pilin TraA 3J: Type IV conjugative transfer system pilin TraA 3K: Type IV conjugative transfer system pilin TraA 3L: Type IV conjugative transfer system pilin TraA 3M: Type IV conjugative transfer system pilin TraA 3N: Type IV conjugative transfer system pilin TraA 3O: Type IV conjugative transfer system pilin TraA 4A: Type IV conjugative transfer system pilin TraA 4B: Type IV conjugative transfer system pilin TraA 4C: Type IV conjugative transfer system pilin TraA 4D: Type IV conjugative transfer system pilin TraA 4E: Type IV conjugative transfer system pilin TraA 4F: Type IV conjugative transfer system pilin TraA 4G: Type IV conjugative transfer system pilin TraA 4H: Type IV conjugative transfer system pilin TraA 4I: Type IV conjugative transfer system pilin TraA 4J: Type IV conjugative transfer system pilin TraA 4K: Type IV conjugative transfer system pilin TraA 4L: Type IV conjugative transfer system pilin TraA 4M: Type IV conjugative transfer system pilin TraA 4N: Type IV conjugative transfer system pilin TraA 4O: Type IV conjugative transfer system pilin TraA 5A: Type IV conjugative transfer system pilin TraA 5B: Type IV conjugative transfer system pilin TraA 5C: Type IV conjugative transfer system pilin TraA 5D: Type IV conjugative transfer system pilin TraA 5E: Type IV conjugative transfer system pilin TraA 5F: Type IV conjugative transfer system pilin TraA 5G: Type IV conjugative transfer system pilin TraA 5H: Type IV conjugative transfer system pilin TraA 5I: Type IV conjugative transfer system pilin TraA 5J: Type IV conjugative transfer system pilin TraA 5K: Type IV conjugative transfer system pilin TraA 5L: Type IV conjugative transfer system pilin TraA 5M: Type IV conjugative transfer system pilin TraA 5N: Type IV conjugative transfer system pilin TraA 5O: Type IV conjugative transfer system pilin TraA M: Maturation protein ヘテロ分子