Linked Life Data

6245341

Source:http://linkedlifedata.com/resource/pubmed/id/6245341

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1980-6-16
pubmed:abstractText
It has been found that strains carrying mutations in the dnaA gene are unusually sensitive to COU, NAL or NOV, which are known to inhibit DNA gyrase activities. The delay in the initiation of chromosome replication after COU treatment has been observed in cells with chromosomes synchronized by amino acid starvation or by temperature shift-up (dnaA46). The unusual sensitivity of growth to COU of the initiation mutant runs parallel to a higher sensitivity to the drug of the initiation of chromosome replication. The double mutant, dnaA46, cou-110 has been isolated and mutation cou-110 conferring resistance of growth, initiation and elongation of chromosome replication to COU was mapped in the gene coding for the subunit of DNA gyrase. The reduced frequency of appearance of the mutants resistant to COU, NAL, or NOV in the initiation mutant suggests that some mutations in genes coding for DNA gyrase subunits cannot coexist with the dnaA46 mutation. The possible mechanisms of the requirement of DNA gyrase for dnaA-dependent initiation of E. coli chromosome are discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
177
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
301-9
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Requirement of DNA gyrase for the initiation of chromosome replication in Escherichia coli K-12.
pubmed:publicationType
Journal Article