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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1994-7-13
pubmed:databankReference
pubmed:abstractText
The sequence of Rift Valley fever virus L segment that we published in a previous paper was erroneous in the 3'-terminal region of the antigenomic RNA molecule. Here, we have shown that the L segment is in fact 6404 nucleotides long and encodes a polypeptide of 237.7K in the viral complementary sense. Sequence comparisons performed between the RNA-dependent RNA polymerases of 22 negative-stranded RNA viruses revealed the existence of two novel regions located at the amino termini of the proteins and conserved only in the polymerases of bunya- and arenaviruses. In the region conserved in all RNA-dependent polymerases, corresponding to the so-called 'polymerase module', we identified a new motif, designated premotif A, common to all RNA-dependent polymerases, as well as amino acids located in the region between motifs preA and A which are strictly conserved for segmented negative-stranded RNA viruses. Using the recently released coordinates of human immunodeficiency virus reverse transcriptase and the alignment between all RNA-dependent polymerases in the 'polymerase module', we have determined the position of the conserved residues in these polymerases and discuss their possible functions in light of the available structural information.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
75 ( Pt 6)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1345-52
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Rift Valley fever virus L segment: correction of the sequence and possible functional role of newly identified regions conserved in RNA-dependent polymerases.
pubmed:affiliation
Laboratoire des Bunyaviridés, CNRS URA 545, Institut Pasteur, Paris, France.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't