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-Structure paper
Title | High Resolution Structure of the Mature Capsid of Bacteriophage ϕRSA1 by Cryo-Electron Microscopy. |
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Journal, issue, pages | Int J Mol Sci, Vol. 22, Issue 20, Year 2021 |
Publish date | Oct 13, 2021 |
Authors | Grégory Effantin / Akiko Fujiwara / Takeru Kawasaki / Takashi Yamada / Guy Schoehn / |
PubMed Abstract | The ϕRSA1 bacteriophage has been isolated from , a gram negative bacteria having a significant economic impact on many important crops. We solved the three-dimensional structure of the ϕRSA1 mature ...The ϕRSA1 bacteriophage has been isolated from , a gram negative bacteria having a significant economic impact on many important crops. We solved the three-dimensional structure of the ϕRSA1 mature capsid to 3.9 Å resolution by cryo-electron microscopy. The capsid shell, that contains the 39 kbp of dsDNA genome, has an icosahedral symmetry characterized by an unusual triangulation number of T = 7, . The ϕRSA1 capsid is composed solely of the polymerization of the major capsid protein, gp8, which exhibits the typical "Johnson" fold first characterized in bacteriophage HK97. As opposed to the latter, the ϕRSA1 mature capsid is not stabilized by covalent crosslinking between its subunits, nor by the addition of a decoration protein. We further describe the molecular interactions occurring between the subunits of the ϕRSA1 capsid and their relationships with the other known bacteriophages. |
External links | Int J Mol Sci / PubMed:34681713 / PubMed Central |
Methods | EM (single particle) |
Resolution | 3.9 Å |
Structure data | EMDB-13120, PDB-7oz4: |
Source |
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Keywords | VIRUS / bacteriophage / capsid |