id:"swepub:oai:DiVA.org:umu-59748"
Search: id:"swepub:oai:DiVA.org:umu-59748" > Stringent regulatio...
- 1 of 1
- Previous record
- Next record
- To hitlist
Stringent regulation of the synthesis of a transfer ribonucleic acid biosynthetic enzyme : transfer ribonucleic acid(m5U)methyltransferase from Escherichia coli.
-
- Ny, Tor (author)
- Umeå universitet,Institutionen för medicinsk kemi och biofysik
- Björk, G R (author)
- (creator_code:org_t)
- 1977
- 1977
- English.
- In: Journal of Bacteriology. - 0021-9193 .- 1098-5530. ; 130:2, s. 635-41
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- This paper describes the regulation of a transfer ribonucleic acid (tRNA) biosynthetic enzyme, the tRNA(m5U)methyltransferase (EC 2.1.1.35). This enzyme catalyzes the formation of 5-methyluridine (m5U, ribothymidine) in all tRNA chains of Escherichia coli. Partial deprivation of charged tRNAVal can be imposed by shifting strains carrying a temperature-sensitive valyl-tRNA ligase from a permissive to a semipermissive temperature. By using two such strains differing only in the allelic state of the relA gene, it was possible to show the tRNA(m5U)methyltransferase to be stringently regulated. Upon partial deprivation of charged tRNAVal, the differential rate of tRNA(m5U)methyltransferase synthesis was found to decrease in a strain with stringent RNA control (relA+), whereas it increased in the strain carrying the relA allele. This increase of accumulation of tRNA(m5U)methyltransferase activity required protein synthesis. Thus, when tRNA is partially uncharged in the cell, the relA gene product influences the expression of tRNA(m5U)methyltransferase gene.
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Bacteriology (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Ny, Tor
- Björk, G R
- Articles in the publication
- Journal of Bacte ...
- By the university
- Umeå University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
