| Literature DB >> 9882369 |
H Zhang1, J Zhang, X Yu, X Lu, Q Zhang, J Jakana, D H Chen, X Zhang, Z H Zhou.
Abstract
Unlike the multiple-shelled organization of other Reoviridae members, cytoplasmic polyhedrosis virus (CPV) has a single-shelled capsid. The three-dimensional structures of full and empty CPV by electron cryomicroscopy show identical outer shells but differ inside. The outer surface reveals a T=1 icosahedral shell decorated with spikes at its icosahedral vertices. The internal space of the empty CPV is unoccupied except for 12 mushroom-shaped densities attributed to the transcriptional enzyme complexes. The ordered double-stranded RNA inside the full capsid forms spherical shells spaced 25 A apart. The RNA-protein interactions suggest a mechanism for RNA transcription and release.Entities:
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Year: 1999 PMID: 9882369 PMCID: PMC103988
Source DB: PubMed Journal: J Virol ISSN: 0022-538X Impact factor: 5.103