Linked Life Data

15483240

Source:http://linkedlifedata.com/resource/pubmed/id/15483240

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 11
pubmed:dateCreated
2004-10-14
pubmed:abstractText
The genome of Bunyamwera virus (BUN; family Bunyaviridae) consists of three segments of negative-sense, single-stranded RNA that are called L (large), M (medium) and S (small), according to their size. The genomic RNAs are encapsidated by the viral nucleocapsid protein to form ribonucleoprotein complexes (RNPs). The terminal 3' and 5' non-coding sequences are complementary and interact to give a panhandle-like structure to the RNP. Located within these non-coding sequences are elements that control replication and transcription. The sequences of the terminal 11 nt are conserved among the genome segments and are followed by shorter, complementary nucleotide motifs that are conserved on a segment-specific basis. Here, a detailed analysis of the 3' and 5' non-coding regions of the BUN S segment is presented. By using a mini-replicon system, it was shown that a functional BUN S promoter requires complementarity, as well as defined sequences, within the terminal 15 nt of either end. It was also shown that the minimal requirement for transcription is localized within the terminal 32 nt of the S segment. A comparison of known strong BUN promoters led to the prediction of a structural element outside the terminal 15 nt; introduction of this motif into the BUN S sequence resulted in increased antigenome and mRNA levels and increased expression of S segment proteins, as shown by mini-replicon assays, as well as recovery of a recombinant virus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
85
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3269-78
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Complementarity, sequence and structural elements within the 3' and 5' non-coding regions of the Bunyamwera orthobunyavirus S segment determine promoter strength.
pubmed:affiliation
Division of Virology, Institute of Biomedical and Life Sciences, University of Glasgow, Church Street, Glasgow G11 5JR, UK.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't