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TitleSequence and structural characterization of great salt lake bacteriophage CW02, a member of the T7-like supergroup.
Journal, issue, pagesJ Virol, Vol. 86, Issue 15, Page 7907-7917, Year 2012
Publish dateMay 16, 2012
AuthorsPeter S Shen / Matthew J Domek / Eduardo Sanz-García / Aman Makaju / Ryan M Taylor / Ryan Hoggan / Michele D Culumber / Craig J Oberg / Donald P Breakwell / John T Prince / David M Belnap /
PubMed AbstractHalophage CW02 infects a Salinivibrio costicola-like bacterium, SA50, isolated from the Great Salt Lake. Following isolation, cultivation, and purification, CW02 was characterized by DNA sequencing, ...Halophage CW02 infects a Salinivibrio costicola-like bacterium, SA50, isolated from the Great Salt Lake. Following isolation, cultivation, and purification, CW02 was characterized by DNA sequencing, mass spectrometry, and electron microscopy. A conserved module of structural genes places CW02 in the T7 supergroup, members of which are found in diverse aquatic environments, including marine and freshwater ecosystems. CW02 has morphological similarities to viruses of the Podoviridae family. The structure of CW02, solved by cryogenic electron microscopy and three-dimensional reconstruction, enabled the fitting of a portion of the bacteriophage HK97 capsid protein into CW02 capsid density, thereby providing additional evidence that capsid proteins of tailed double-stranded DNA phages have a conserved fold. The CW02 capsid consists of bacteriophage lambda gpD-like densities that likely contribute to particle stability. Turret-like densities were found on icosahedral vertices and may represent a unique adaptation similar to what has been seen in other extremophilic viruses that infect archaea, such as Sulfolobus turreted icosahedral virus and halophage SH1.
External linksJ Virol / PubMed:22593163 / PubMed Central
MethodsEM (single particle)
Resolution16.0 Å
Structure data

5388

3j1a

EMDB-5388: Cryo-electron microscopy and three-dimensional reconstruction of bacteriophage CW02
PDB-3j1a: HK97-like fold fitted into 3D reconstruction of bacteriophage CW02
Method: EM (single particle) / Resolution: 16.0 Å

Source
  • great salt lake bacteriophage cw02 (others)
KeywordsVIRUS / halophage / bacteriophage HK97 / bacteriophage T7 / T7-like phage / turret / extremophile / Great Salt Lake

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