Linked Life Data

2507525

Source:http://linkedlifedata.com/resource/pubmed/id/2507525

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1989-11-3
pubmed:abstractText
pBR322 contains the amp gene encoding beta-lactamase. When Escherichia coli carrying this plasmid is exposed to heat shock, beta-lactamase synthesis is repressed transiently at the translational level. To identify the DNA element responsible for this translational repression, DNA segments containing the translation start region of the amp gene were excised from pAT153 and fused in frame with the lacZ reading frame in the open reading frame vector pORF1. These constructs were introduced into E. coli, and the effect of heat shock of the cells on the synthesis of beta-galactosidase starting from the amp start codon was examined. As is the case for pBR322-encoded synthesis of beta-lactamase, the synthesis of beta-galactosidase encoded by the fused genes also ceased transiently upon heat shock. It is concluded that the heat shock-induced repression of the amp gene occurs at the initiation step of translation. As far as the present study is concerned, the minimum DNA segment responsible for the repression is AT TGA AAA AGG AAG AGT ATG AG, which includes the Shine-Dalgarno sequence (AAGGA) and the initiation codon (ATG).
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-2424452, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-2464068, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-271968, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-3311807, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-3316194, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-350413, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-3553162, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-4598299, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-6308625, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-6343825, http://linkedlifedata.com/resource/pubmed/commentcorrection/2507525-6442118
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0021-9193
pubmed:author
pubmed:issnType
Print
pubmed:volume
171
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5452-7
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
The translation start signal region of TEM beta-lactamase mRNA is responsible for heat shock-induced repression of amp gene expression in Escherichia coli.
pubmed:affiliation
Institute for Protein Research, Osaka University, Japan.
pubmed:publicationType
Journal Article