Linked Life Data

3031429

Source:http://linkedlifedata.com/resource/pubmed/id/3031429

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1987-5-11
pubmed:databankReference
pubmed:abstractText
The DNA sequences of the diadenosine tetraphosphatase gene (apaH) and of the flanking regions were determined. Three other genes were identified in the flanking regions: ksgA, apaG and folA encoding, respectively, a 16 S rRNA methyltransferase, an unidentified protein of Mr 13,826 and dihydrofolate reductase, with the order folA-apaH-apaG-ksgA. The apaH gene is thus located between folA and ksgA at 1 min on the Escherichia coli chromosome linkage map and folA is transcribed clockwise, whereas ksgA, apaG and apaH are transcribed in the opposite direction. It was shown that ksgA, apaG and apaH can be expressed from a polycistronic mRNA originating from a promoter (p1) located upstream of ksgA. However, another promoter (p2) was found within the ksgA structural gene. This promoter, active in vivo, can account for p1-independent expression of the two distal cistrons, apaG and apaH. Finally, the effect on diadenosine tetraphosphatase over-production of a frameshift mutation causing premature translational termination of apaG suggests that expression of apaG and apaH is coupled at the translational level.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
205
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
515-22
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
The gene for Escherichia coli diadenosine tetraphosphatase is located immediately clockwise to folA and forms an operon with ksgA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't