Linked Life Data

15725626

Source:http://linkedlifedata.com/resource/pubmed/id/15725626

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2005-2-23
pubmed:abstractText
The yeast RAD27 gene encodes a functional homolog of the mammalian FEN1 protein, a structure-specific endo/exonuclease which plays an important role in DNA replication and repair. Previous genetic interaction studies, including a synthetic genetic array (SGA) analysis, showed that the survival of rad27Delta cells requires several DNA metabolic processes, in particular those mediated by all members of the Rad52-dependent recombinational repair pathway. Here, we report the results of our SGA analysis of the collection of non-essential yeast genes against the rad27Delta mutation, which resulted in the identification of a novel synthetic lethal interaction conferred by mutations affecting the Nup84 nuclear pore subcomplex (nup133Delta, nup120Delta and nup84Delta). Additional screens showed that all Rad52 group genes are required for the survival of the nup133Delta and nup120Delta mutants, which are defective in nuclear pore distribution and mRNA export, but not of the nup133DeltaN mutant, which is solely defective in pore distribution. This requirement for the DNA double-strand break (DSB) repair pathway is consistent with the observation that, like rad27Delta, the nup133Delta, nup120Delta and nup84Delta mutants are sensitive to methyl methanesulfonate (MMS). Furthermore, nup133Delta cells exhibit an increased number of spontaneous DNA repair foci containing Rad52. Altogether, these data suggest that the pathological interactions between the rad27Delta and specific nupDelta mutations result from the accumulation of unrepaired DNA damages.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1568-7864
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
459-68
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Genetic network interactions among replication, repair and nuclear pore deficiencies in yeast.
pubmed:affiliation
Institut Curie, Section de Recherche, UMR144 Centre National de la Recherche Scientifique, Génétique Moléculaire de la Recombinaison, 26 rue d'Ulm, 75248 Paris Cedex 05, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't