Download MendeleyThe structure of pariacoto virus reveals a dodecahedral cage of duplex RNA.
Tang, L., Johnson, K.N., Ball, L.A., Lin, T., Yeager, M., Johnson, J.E.(2001) Nat Struct Biol 8: 77-83
- PubMed: 11135676
- DOI: https://doi.org/10.1038/83089
- Primary Citation of Related Structures:
1F8V - PubMed Abstract:
The 3.0 A resolution crystal structure of Pariacoto virus (PaV) reveals extensive interactions between portions of the viral RNA genome and the icosahedral capsid. Under the protein shell of the T = 3 quasi equivalent capsid lies a dodecahedral cage composed of RNA duplex that accounts for approximately 35% of the single-stranded RNA genome. The highly basic N-terminal regions (residues 7-54) of the subunits, forming pentamers (A subunits) are clearly visible in the density map and make numerous interactions with the RNA cage. The C-terminal segments (residues 394-401) of the A subunits lie in channels near the quasi three-fold axes. Electron cryo-microscopy and image reconstruction of PaV particles clearly show the dodecahedral RNA cage.
Organizational Affiliation:
Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
