Kivelä Hanna M, Kalkkinen Nisse, Bamford Dennis H
Department of Biosciences, University of Helsinki, Finland.
J Virol. 2002 Aug;76(16):8169-78. doi: 10.1128/jvi.76.16.8169-8178.2002.
The marine double-stranded DNA (dsDNA) bacteriophage PM2, studied since 1968, is the type organism of the family Corticoviridae, infecting two gram-negative Pseudoalteromonas species. The virion contains a membrane underneath an icosahedral protein capsid composed of two structural proteins. The purified major capsid protein, P2, appears as a trimer, and the receptor binding protein, P1, appears as a monomer. The C-terminal part of P1 is distal and is responsible for receptor binding activity. The rest of the structural proteins are associated with the internal phospholipid membrane enclosing the viral genome. This internal particle is designated the lipid core. The overall structural organization of phage PM2 resembles that of dsDNA bacteriophage PRD1, the type organism of the family TECTIVIRIDAE:
自1968年起开始研究的海洋双链DNA(dsDNA)噬菌体PM2,是皮层病毒科的模式生物,可感染两种革兰氏阴性假交替单胞菌属物种。病毒粒子在由两种结构蛋白组成的二十面体蛋白质衣壳下方含有一层膜。纯化后的主要衣壳蛋白P2呈三聚体形式,而受体结合蛋白P1呈单体形式。P1的C末端部分位于远端,负责受体结合活性。其余结构蛋白与包裹病毒基因组的内部磷脂膜相关联。这个内部粒子被称为脂质核心。噬菌体PM2的整体结构组织类似于双链DNA噬菌体PRD1,即 tectiviridae 科的模式生物: