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Pospiviroidae

Pospiviroidae

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The Pospiviroidae[1] are a family of viroids, including the first viroid to be discovered, PSTVd. Their secondary structure is key to their biological activity. The classification of this family is based on differences in the conserved central region sequence.[2] The genome consists (in this order) of an LH terminal domain, a pathogenic domain, conserved central region (pospiviroid RY motif stem loop), variable domain, and an RH terminal domain.[3] Pospiviroidae replication occurs in an asymmetric fashion via host cell RNA polymerase, RNase, and RNA ligase.

Taxonomy

The family contains the following genera:[4]

References

  1. ^ Di Serio, F; Owens, RA; Li, SF; Matoušek, J; Pallás, V; Randles, JW; Sano, T; Verhoeven, JTJ; Vidalakis, G; Flores, R; ICTV Report Consortium (17 December 2020). "ICTV Virus Taxonomy Profile: Pospiviroidae". The Journal of General Virology. 102 (2). doi:10.1099/jgv.0.001543. PMC 8116940. PMID 33331814.
  2. ^ "ICTV Report Pospiviroidae".
  3. ^ Giguère, Tamara; Perreault, Jean-Pierre; Melcher, Ulrich (4 August 2017). "Classification of the Pospiviroidae based on their structural hallmarks". PLOS ONE. 12 (8): e0182536. Bibcode:2017PLoSO..1282536G. doi:10.1371/journal.pone.0182536. PMC 5544226. PMID 28783761. Most of the members of the Pospiviroidae fold into a rod-like structure which includes five regions: the terminal left (TL), the pathogenic (P), the central (C), the variable (V) and the terminal right (TR).
  4. ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 24 May 2021.

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Pospiviroidae: Brief Summary

provided by wikipedia EN

The Pospiviroidae are a family of viroids, including the first viroid to be discovered, PSTVd. Their secondary structure is key to their biological activity. The classification of this family is based on differences in the conserved central region sequence. The genome consists (in this order) of an LH terminal domain, a pathogenic domain, conserved central region (pospiviroid RY motif stem loop), variable domain, and an RH terminal domain. Pospiviroidae replication occurs in an asymmetric fashion via host cell RNA polymerase, RNase, and RNA ligase.

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cc-by-sa-3.0
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Wikipedia authors and editors
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wikipedia EN