Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1986-7-14
pubmed:abstractText
The xylABC promoter (OP1), located on the TOL plasmid of Pseudomonas putida contains sequences homologous to the conserved regions found in nitrogen fixation (nif) promoters and in other promoters subject to nitrogen control. XylA-lac fusions were constructed in order to monitor expression from the OP1 promoter in Escherichia coli. Transcription was activated in the presence of the heterologous regulatory genes ntrC or nifA from Klebsiella pneumoniae as well as by the homologous P. putida regulatory gene xylR. In all cases activation was also dependent on the ntrA gene, whose product has been implicated as a specific sigma factor for ntr activatable operons. The 5' ends of xylA mRNA, detected by S1 nuclease mapping of in vivo transcripts, were identical in strains containing xylR, ntrC or nifA as transcriptional activators. However, activation of the K. pneumoniae nifL or nifH promoters by xylR was not detected.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
203
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
129-36
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
The xylABC promoter from the Pseudomonas putida TOL plasmid is activated by nitrogen regulatory genes in Escherichia coli.
pubmed:publicationType
Journal Article