Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1988-1-7
pubmed:databankReference
pubmed:abstractText
The rhaC gene, whose product is the positive activator of the genes required for L-rhamnose utilization, has been cloned along with the rhamnose structural genes. The rhaC sequence shows two partially overlapping reading frames, encoding two proteins of molecular weight 32,000 and 35,000 RhaS and RhaR. Both proteins show significant homology to AraC, the positive activator of the arabinose operon. S1 mapping located transcriptional start points and showed that RhaR, and possibly RhaS, positively regulate transcription from the structural gene promoters as well as transcription from their own promoter. In-vivo dimethyl sulfate footprinting and DNase I footprinting indicate that the RhaR protein may bind to DNA elements upstream from its RNA polymerase binding site.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-2836
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
196
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
789-99
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Positive regulation of the Escherichia coli L-rhamnose operon is mediated by the products of tandemly repeated regulatory genes.
pubmed:affiliation
Department of Biochemistry, Brandeis University, Waltham, MA 02254.
pubmed:publicationType
Journal Article