Picornavirales, a proposed order of positive-sense single-stranded RNA viruses with a pseudo-T = 3 virion architecture

@article{LeGall2008PicornaviralesAP,
  title={Picornavirales, a proposed order of positive-sense single-stranded RNA viruses with a pseudo-T = 3 virion architecture},
  author={Olivier Le Gall and Peter Christian and Claude M. Fauquet and Andrew M. Q. King and Nick J. Knowles and Nobuhiko Nakashima and Glyn Stanway and Alexander E. Gorbalenya},
  journal={Archives of Virology},
  year={2008},
  volume={153},
  pages={715-727}
}
Despite the apparent natural grouping of “picorna-like” viruses, the taxonomical significance of this putative “supergroup” was never addressed adequately. We recently proposed to the ICTV that an order should be created and named Picornavirales, to include viruses infecting eukaryotes that share similar properties: (i) a positive-sense RNA genome, usually with a 5′-bound VPg and 3′-polyadenylated, (ii) genome translation into autoproteolytically processed polyprotein(s), (iii) capsid proteins… 
Polycipiviridae: a proposed new family of polycistronic picorna-like RNA viruses
TLDR
The formation of a new virus family, Polycipiviridae, is proposed to classify this clade of arthropod-infecting polycistronic picorna-like viruses, and it is proposed that this family be divided into three genera: Chipolycivirus, Hupolycavirus and Sopolycvirus, with members of the latter infecting ants in at least 3 different subfamilies.
Aphis glycines virus 1, a new bicistronic virus with two functional internal ribosome entry sites, is related to a group of unclassified viruses in the Picornavirales.
TLDR
In phylogenetic analyses based on capsid protein and RNA-dependent RNA polymerase sequences, ApGlV1 consistently clustered with a group of unclassified bicistronic picorna-like viruses discovered from arthropods and plants that may represent a novel family in the order Picornavirales.
The Nonstructural Protein 2C of a Picorna-Like Virus Displays Nucleic Acid Helix Destabilizing Activity That Can Be Functionally Separated from Its ATPase Activity
TLDR
It is revealed that a picorna-like virus 2C protein displays RNA helix destabilizing and strand annealing acceleration activity, which may be critical for picornaviral replication and pathogenesis, and should foster the understanding of picornA-like viruses and viral RNA chaperones.
A Novel Rice Curl Dwarf-Associated Picornavirus Encodes a 3C Serine Protease Recognizing Uncommon EPT/S Cleavage Sites
TLDR
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Secoviridae: A Family of Plant Picorna-Like Viruses with Monopartite or Bipartite Genomes
TLDR
A recent update in the taxonomy of plant picorna-like viruses has led to the creation of the family Secovirids, which amalgamates the previous families Comoviridae and Sequiviridae as well as the genera Cheravirus, Sequivirus and Torradovirus.
Structure of Nora virus at 2.7 Å resolution and implications for receptor binding, capsid stability and taxonomy
TLDR
The structure of Nora virus is solved and it is proposed that Nora virus, and a small group of related viruses, should have its own family within the order Picornavirales.
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TLDR
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