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Presence of poly(A) tails at the 3'-termini of some mRNAs of a double-stranded RNA virus, southern rice black-streaked dwarf virus.


ABSTRACT: Southern rice black-streaked dwarf virus (SRBSDV), a new member of the genus Fijivirus, is a double-stranded RNA virus known to lack poly(A) tails. We now showed that some of SRBSDV mRNAs were indeed polyadenylated at the 3' terminus in plant hosts, and investigated the nature of 3' poly(A) tails. The non-abundant presence of SRBSDV mRNAs bearing polyadenylate tails suggested that these viral RNA were subjected to polyadenylation-stimulated degradation. The discovery of poly(A) tails in different families of viruses implies potentially a wide occurrence of the polyadenylation-assisted RNA degradation in viruses.

SUBMITTER: He M 

PROVIDER: S-EPMC4411670 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature

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Presence of poly(A) tails at the 3'-termini of some mRNAs of a double-stranded RNA virus, southern rice black-streaked dwarf virus.

He Ming M   Jiang Ziqiong Z   Li Shuo S   He Peng P  

Viruses 20150331 4


Southern rice black-streaked dwarf virus (SRBSDV), a new member of the genus Fijivirus, is a double-stranded RNA virus known to lack poly(A) tails. We now showed that some of SRBSDV mRNAs were indeed polyadenylated at the 3' terminus in plant hosts, and investigated the nature of 3' poly(A) tails. The non-abundant presence of SRBSDV mRNAs bearing polyadenylate tails suggested that these viral RNA were subjected to polyadenylation-stimulated degradation. The discovery of poly(A) tails in differen  ...[more]

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