Linked Life Data

10792734

Source:http://linkedlifedata.com/resource/pubmed/id/10792734

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-8-16
pubmed:abstractText
There is accumulating evidence that the coordinate transcription of the virulence genes in Listeria monocytogenes constitutes a very complex regulation mechanism which might require other factors in addition to PrfA. We previously described an unknown proteinaceous component from crude bacterial cell extracts, which, together with PrfA, formed a specific complex (CI) in electrophoretic mobility shift assays (EMSA) with an hly promoter probe. Here we identify the RNA polymerase (RNAP) of L. monocytogenes as an essential component of the CI complex. Addition of purified RNAP plus PrfA to the hly promoter probe allowed reconstitution of a complex migrating at the same height as CI. By using EMSA and DNaseI footprint experiments it could be shown that PrfA leads to an enhanced and specific binding of RNAP. Transcriptional activity of RNAP in vitro, using the actA promoter, was strictly dependent on PrfA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0950-382X
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
487-97
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
PrfA mediates specific binding of RNA polymerase of Listeria monocytogenes to PrfA-dependent virulence gene promoters resulting in a transcriptionally active complex.
pubmed:affiliation
Lehrstuhl für Mikrobiologie, Theodor-Boveri-Institut für Biowissenschaften der Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't