Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-3-13
pubmed:abstractText
EsigmaG-dependent transcription of the splAB operon in the forespore at stage III of Bacillus subtilis sporulation initiates from two promoters, P1 preceding splA (major) and P3 preceding splB (minor). To explore the possible role of splA in controlling splB-encoded spore photoproduct lyase expression, we measured beta-galactosidase from splB-lacZ fusions integrated at the SPbeta prophage locus which contained point mutations or deletions which either inactivated or physically removed P1 and/or splA. Paradoxically, inactivation of P1 by point mutation or its removal by deletion from upstream resulted in elevated beta-galactosidase expression of the resulting splB-lacZ fusion, as did an in-frame deletion of splA which left P1 and P3 intact;however, expression of all fusions remained sporulation specific and EsigmaG dependent.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
B
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0343-8651
pubmed:author
pubmed:issnType
Print
pubmed:volume
34
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
133-7
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Spore photoproduct lyase operon (splAB) regulation during Bacillus subtilis sporulation: modulation of splB-lacZ fusion expression by P1 promoter mutations and by an in-frame deletion of splA.
pubmed:affiliation
Instituto de Investigacion en Biología Experimental, Facultad de Química, Universidad de Guanajuato, Guanajuato, Gto., Mexico.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't