• Source: Ortervirales

Ortervirales is an order that contains all accepted species of single-stranded RNA viruses that replicate through a DNA intermediate (Group VI) and all accepted species of double-stranded DNA viruses (except Hepadnaviridae) that replicate through an RNA intermediate (Group VII).
The name is derived from the reverse of retro.
All reverse-transcribing viruses possess significant similarities to each other. Their reverse transcriptase proteins share a common origin. Moreover, belpaoviruses, metaviruses, pseudoviruses, and retroviruses have other features in common. Their polymerase proteins are similar in structure and include aspartic protease (retroviral aspartyl protease) and an integrase belonging to the DDE recombinase superfamily (see Recombination-activating gene [structure]). They also share similar capsid and nucleocapsid proteins/domains. Caulimoviruses also share some features with belpaoviruses, metaviruses, pseudoviruses, and retroviruses such as a homologous aspartate protease. On the other hand, Hepadnaviridae family is part of a sister order of Ortervirales called Blubervirales.




Taxonomy


There are five families in this order:

Family Belpaoviridae – LTR retrotransposon, Bel/Pao family
Family Metaviridae – LTR retrotransposon, Ty3/gypsy family
Family Pseudoviridae – LTR retrotransposon, Ty1/copia family
Family Retroviridae – Retroviruses, e.g. HIV
Family Caulimoviridae – dsDNA-RT viruses infecting plants




References

Kata Kunci Pencarian:

• HIV
• Klasifikasi virus
• Retroviridae
• Riboviria
• Simian retrovirus Type D (SRV)
• Deltaretrovirus
• Lentivirus
• Virus limfotropik sel T manusia tipe 1
• Equine infectious anemia virus
• Virus imunodefisiensi kucing
• Ortervirales
• Pseudoviridae
• Retrovirus
• Baltimore classification
• HIV
• Feline leukemia virus
• Metaviridae
• Primate T-lymphotropic virus
• Revtraviricetes
• Subtypes of HIV