Linked Life Data

3508494

Source:http://linkedlifedata.com/resource/pubmed/id/3508494

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1989-6-19
pubmed:abstractText
Direct biochemical evidence has been obtained for the existence of mutations in all eight RNA segments of the A/Ann Arbor/6/60 cold-adapted (ca) mutant influenza virus strain as compared with its wild-type (wt) progenitor. Polyacrylamide gel electrophoresis (PAGE) of viral RNA revealed a change in the electrophoretic migration of RNA 2 (PB1). T1 oligonucleotide mapping revealed changes in two polymerase genes (the PB2 and PA genes), the hemagglutinin (HA) gene and the nucleoprotein (NP) gene. Analysis of S1 nuclease-treated RNA hybrids on polyacrylamide gels detected changes in the HA and neuraminidase (NA) genes. Partial DNA sequence analysis demonstrated a base sequence change in the matrix (M) protein gene that predicts an amino acid change in the M2 protein and a silent mutation in the non-structural (NS) protein gene. In addition, analysis of viral polypeptides by PAGE has so far revealed changes in the viral protein, PA. These findings directly demonstrate the existence of multiple mutations in the ca vaccine strain, a property that may provide reliably and stably attenuated vaccines that derive their six internal genes from the ca A/Ann Arbor/6/60 donor strain.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0882-4010
pubmed:author
pubmed:issnType
Print
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
387-97
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Comparative studies of wild-type and cold-mutant (temperature-sensitive) influenza virus: detection of mutations in all genes of the A/Ann Arbor/6/60 (H2N2) mutant vaccine donor strain.
pubmed:affiliation
Influenza Branch, Centers for Disease Control, Atlanta, GA 30333.
pubmed:publicationType
Journal Article, Comparative Study