Computational identification of microRNAs in Anatid herpesvirus 1 genome.

Virology Journal
Jun XiangXiaoyue Chen

Abstract

MicroRNAs (miRNAs) are a group of short (~22 nt) noncoding RNAs that specifically regulate gene expression at the post-transcriptional level. miRNA precursors (pre-miRNAs), which are imperfect stem loop structures of ~70 nt, are processed into mature miRNAs by cellular RNases III. To date, thousands of miRNAs have been identified in different organisms. Several viruses have been reported to encode miRNAs. Here, we extended the analysis of miRNA-encoding potential to the Anatid herpesvirus 1 (AHV-1). Using computational approaches, we found that AHV-1 putatively encodes 12 mature miRNAs. We then compared the 12 mature miRNAs candidates with the all known miRNAs of the herpesvirus family. Interestingly, the "seed sequences" (nt 2 to 8) of 2 miRNAs were predicted to have the high conservation in position and/or sequence with the 2 miRNAs of Marek's disease virus type 1 (MDV-1). Additionally, we searched the targets from viral mRNAs. Using computational approaches, we found that AHV-1 putatively encodes 12 mature miRNAs and 2 miRNAs have the high conservation with the 2 miRNAs of MDV-1. The result suggested that AHV-1 and MDV-1 should have closed evolutionary relation, which provides a valuable evidence of classification of AHV-1. ...Continue Reading

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Citations

Mar 26, 2014·Viruses·Yongxiu Yao, Venugopal Nair
Jun 17, 2020·Journal of Immunology Research·Yang LiXiaoyue Chen

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Software Mentioned

ClustalW2
BLASTn
VMir Analyzer
MiPred
MiRNA

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