Format

Send to

Choose Destination
See comment in PubMed Commons below
Virology. 2013 Sep;444(1-2):64-70. doi: 10.1016/j.virol.2013.05.032. Epub 2013 Jun 13.

Characterization of the polyadenylation activity in a replicase complex from Bamboo mosaic virus-infected Nicotiana benthamiana plants.

Author information

1
Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan.

Abstract

Bamboo mosaic virus (BaMV) has a positive-sense single-stranded RNA genome with a 5' cap and a 3' poly(A) tail. To characterize polyadenylation activity in the BaMV replicase complex, we performed the in vitro polyadenylation with various BaMV templates. We conducted a polyadenylation activity assay for BaMV RNA by using a partially purified BaMV replicase complex. The results showed that approximately 200 adenylates at the 3' end of the RNA were generated on the endogenous RNA templates. Specific fractions derived from uninfected Nicotiana benthamiana plants enhanced the polyadenylation activity, implying that host factors are involved in polyadenylation. Furthermore, polyadenylation can be detected in newly synthesized plus-strand RNA in vitro when using the exogenous BaMV minus-strand minigenome. For polyadenylation on the exogenous plus-strand minigenome, the 3' end requires at least 4A to reach 22% polyadenylation activity. The results indicate that the BaMV replicase complex recognizes the 3' end of BaMV for polyadenylation.

KEYWORDS:

BaMV; In vitro; In vitro polyadenylation; Poly(A) length; Polyadenylation signal; Replicase; Replication assay

PMID:
23768785
DOI:
10.1016/j.virol.2013.05.032
[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center