Linked Life Data

10514567

Source:http://linkedlifedata.com/resource/pubmed/id/10514567

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1999-11-17
pubmed:abstractText
Sequencing of the yeast gene that complemented the sensitivity to the photoactivated monofunctional 3-carbethoxypsoralen of the pso6-1 mutant strain revealed that the ERG3 locus, encoding sterol C-5 desaturase involved in biosynthesis of ergosterol, is allelic to PSO6. Disruption of the ERG3 gene yielded an erg3Delta mutant viable in ergosterol-containing YEPD media with the same pleiotropic mutant phenotype known for pso6-1 and erg3 mutants, including sensitivity to hydrogen peroxide and paraquat. Thus, the erg3/pso6 yeast mutant seems to be more sensitive than the WT to 3-CPs+UVA because of the oxidative damage contributed by this treatment and not because of an impaired repair of the furocoumarin-thymine monoadducts formed in the DNA. We found a significant increase of petites amongst erg3Delta and pso6-1 yeast mutant strains grown in conditions where respiration was mandatory. Mutant pso6-1, with its lowered content of ergosterol, exhibited enhanced synthesis of chitin that was maldistributed and not confined to the bud scars. Chitin overproduction in pso6/erg3 mutants resulted in hypersensitivity to Calcofluor White.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0749-503X
pubmed:author
pubmed:copyrightInfo
Copyright 1999 John Wiley & Sons, Ltd.
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1503-10
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Allelism of Saccharomyces cerevisiae genes PSO6, involved in survival after 3-CPs+UVA induced damage, and ERG3, encoding the enzyme sterol C-5 desaturase.
pubmed:affiliation
Departamento de Biofisica/Centro de Biotecnologia, UFRGS, A. Bento Goncalves 9500, 91507-970 Porto Alegre, RS, Brazil.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't