Ministry of Education, Youth and Sports of the Czech Republic
LM2015043
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ジャーナル: Sci Adv / 年: 2019 タイトル: Structural basis for the multitasking nature of the potato virus Y coat protein. 著者: Andreja Kežar / Luka Kavčič / Martin Polák / Jiří Nováček / Ion Gutiérrez-Aguirre / Magda Tušek Žnidarič / Anna Coll / Katja Stare / Kristina Gruden / Maja Ravnikar / David ...著者: Andreja Kežar / Luka Kavčič / Martin Polák / Jiří Nováček / Ion Gutiérrez-Aguirre / Magda Tušek Žnidarič / Anna Coll / Katja Stare / Kristina Gruden / Maja Ravnikar / David Pahovnik / Ema Žagar / Franci Merzel / Gregor Anderluh / Marjetka Podobnik / 要旨: Potato virus Y (PVY) is among the most economically important plant pathogens. Using cryoelectron microscopy, we determined the near-atomic structure of PVY's flexuous virions, revealing a previously ...Potato virus Y (PVY) is among the most economically important plant pathogens. Using cryoelectron microscopy, we determined the near-atomic structure of PVY's flexuous virions, revealing a previously unknown lumenal interplay between extended carboxyl-terminal regions of the coat protein units and viral RNA. RNA-coat protein interactions are crucial for the helical configuration and stability of the virion, as revealed by the unique near-atomic structure of RNA-free virus-like particles. The structures offer the first evidence for plasticity of the coat protein's amino- and carboxyl-terminal regions. Together with mutational analysis and in planta experiments, we show their crucial role in PVY infectivity and explain the ability of the coat protein to perform multiple biological tasks. Moreover, the high modularity of PVY virus-like particles suggests their potential as a new molecular scaffold for nanobiotechnological applications.
分子量: 29935.797 Da / 分子数: 35 / 由来タイプ: 天然 / 由来: (天然) Potato virus Y (ウイルス) / 参照: UniProt: A0A0A7DJ81
#2: RNA鎖
... RNA (5'-R(P*UP*UP*UP*UP*U)-3')
分子量: 1485.872 Da / 分子数: 35 / 由来タイプ: 天然 詳細: Due to helical averaging during cryo-EM data processing, all nucleotides were assigned the uracil base. 由来: (天然) Potato virus Y (ウイルス)