Linked Life Data

3884971

Source:http://linkedlifedata.com/resource/pubmed/id/3884971

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1985-5-8
pubmed:abstractText
A comprehensive study of nif expression in Klebsiella pneumoniae at the level of transcription, translation and nitrogenase activity during derepression and repression by NH+4 and O2 revealed that (1) transcription and translation rates remained coupled under all conditions; (2) these rates reached a peak during derepression and then decreased to a low level; (3) the transcription profile of nifLA had two peaks; the first was at 1 h before and the second coincided with that of the other operons; and (4) the peaks of nif transcription coincided with a trough in the profile of stringent regulation of RNA synthesis. Our results provide strong evidence that nif-specific repression by NH+4 and O2 occurs exclusively by transcription inhibition and that repression by O2 is independent of transcriptional regulation of the nifLA operon. We have also found evidence which together with the results of previous work shows that O2 repression of nifA mediated transcription involves the nifL gene product.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
198
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
198-206
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
A molecular genetic study of nif expression in Klebsiella pneumoniae at the level of transcription, translation and nitrogenase activity.
pubmed:publicationType
Journal Article