Linked Life Data

2943972

Source:http://linkedlifedata.com/resource/pubmed/id/2943972

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1986-9-30
pubmed:abstractText
To determine the minimum amount of homology required for efficient recombination in Escherichia coli, we measured recombination frequencies between bacteriophage lambda and pBR322 derivatives containing lambda DNA fragments of various sizes by assaying for phages that could transduce the bla and ori genes of pBR322. Efficient recombination required about 40 bp of homology; increases in homology above 40 bp resulted in proportionate increases in recombination, while decreases below 40 bp resulted in precipitous decreases in recombination. The recA+ gene stimulated recombination over the entire range of homologies tested. Restriction enzyme digests of several recombinant DNA molecules indicated that they contained the complete plasmid DNA inserted in the lambda genome as expected for a reciprocal crossover. Analysis of recombination frequencies in different recombination-deficient mutant strains indicated that the formation of lambda-plasmid cointegrates by homologous recombination proceeded predominantly by the RecBC pathway and very inefficiently, if at all, by the RecE and RecF pathways.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
204
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
141-7
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Role of homology and pathway specificity for recombination between plasmids and bacteriophage lambda.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.