Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-6-8
pubmed:abstractText
ICEBs1 is a mobile genetic element found in the chromosome of Bacillus subtilis. Excision and transfer of ICEBs1 is regulated by the global DNA damage response and intercellular peptide signalling. We identified and characterized a repressor, ImmR (formerly YdcN), encoded by ICEBs1. ImmR represses transcription of genes required for excision and transfer, and both activates and represses its own transcription. ImmR regulates transcription within ICEBs1 by binding to several sites in the region of DNA that contains promoters for both immR and xis (encoding excisionase). In addition, we found that ImmR confers immunity from acquisition of additional copies of ICEBs1. ImmR-mediated regulation serves to keep a single copy of ICEBs1 stably maintained in the absence of induction, allows a rapid response to inducing signals, and helps limit acquisition of additional copies of ICEBs1.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0950-382X
pubmed:author
pubmed:issnType
Print
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1515-28
pubmed:dateRevised
2007-12-3
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Identification and characterization of the immunity repressor (ImmR) that controls the mobile genetic element ICEBs1 of Bacillus subtilis.
pubmed:affiliation
Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural