Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-4-10
pubmed:abstractText
pAM beta 1 is a low-copy-number, promiscuous plasmid from Gram-positive bacteria that replicates by a unidirectional theta-type mode. Its replication is initiated by an original mechanism, involving the positive rate-limiting RepE protein. Here we show that the pAM beta 1-encoded CopF protein is involved in negative regulation of the plasmid copy number. CopF represses approximately 10-fold the transcription initiated at the promoter of the repE gene and binds to a 31 bp segment which is located immediately upstream of the -35 box of the repE promoter. We propose that CopF inhibits initiation of transcription at the repE promoter by binding to its operator.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0950-382X
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:geneSymbol
repE
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
463-71
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
The pAM beta 1 CopF repressor regulates plasmid copy number by controlling transcription of the repE gene.
pubmed:affiliation
Laboratoire de Génétique Microbienne, Institut National de la Recherche Agronomique, Jouy en Josas, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't