Linked Life Data

3157004

Source:http://linkedlifedata.com/resource/pubmed/id/3157004

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1985-5-23
pubmed:abstractText
Among lambda particles carrying chromosomes that have failed to replicate during a lytic cycle cross there is a high frequency of Red-mediated recombination near the right-hand end. Earlier work has shown that this recombination is dependent on cos (cohesive end site), the packaging origin of lambda. In contrast to the prediction of the break-copy model proposed earlier, we find a high recombination rate near cos even when only one of the two participating parents has a functional cos at that locus. The exchange is accompanied by loss of the stimulating cos in the recombination product, irrespective of the marker configurations: a+b+cos- rather than a+b+cos+ is produced in the cross a+b-cos- x a-b+cos+ as well as in the cross a+b-cos+ x a-b+cos-. Further analyses of these and earlier data allow the formulation of a detailed model for cos-stimulated, Red-mediated genetic exchange. In this model, cos stimulates exchange by virtue of being a double-strand cut site. The model has several features like that proposed for yeast. This role of cos in the Red pathway contrasts with the role of cos in the RecBC pathway, in which cos serves as an entry site for a recombinase that stimulates exchanges far from cos.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0022-2836
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
181
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
199-209
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
In phage lambda, cos is a recombinator in the red pathway.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.