Abstract:
:The purpose of this study was to generate complete genome sequences of Aravan (ARAV), Khujand (KHUV), Irkut (IRKV) and West Caucasian bat (WCBV) viruses, and to compare them with genomes of other lyssaviruses. We focused on RNA-dependent RNA-polymerase (L) and non-coding regions, because other genes of these viruses have been described previously. The L protein is organized into six conserved blocks (I-VI), previously detected in all Mononegavirales. Furthermore, lyssaviruses have two additional conserved regions, L1 and L2, located in the COOH part of the L. L1 may be responsible for methylation of viral mRNA cap structures, whereas the significance of L2 is unclear. Phylogenetic patterns based on the L are similar to those described for the nucleoprotein. The WCBV is the most divergent member of the genus. Besides phylogeny, it has a short trailer region (57 nucleotides versus 69-70 nucleotides in other lyssaviruses) and different intergenic region lengths, including an exceptionally long non-coding region of the glycoprotein (697 nucleotides) containing a potential open reading frame of 180 nucleotides. The absence of a flanking transcription initiation signal, as well as Northern and Western blot data, suggests that this region is not independently transcribed but is a part of G mRNA.
journal_name
Virus Resjournal_title
Virus researchauthors
Kuzmin IV,Wu X,Tordo N,Rupprecht CEdoi
10.1016/j.virusres.2008.04.021subject
Has Abstractpub_date
2008-09-01 00:00:00pages
81-90issue
1-2eissn
0168-1702issn
1872-7492pii
S0168-1702(08)00170-6journal_volume
136pub_type
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