PMID:4576394: Difference between revisions
Jump to navigation
Jump to search
New PMID: Page! |
Edited by wikibot |
||
| Line 5: | Line 5: | ||
{|{{Prettytable}} align = 'center' width= '70%' | {|{{Prettytable}} align = 'center' width= '70%' | ||
|- | |- | ||
|{{TableHeadingColor}} |'''Abstract''' || | |{{TableHeadingColor}} |'''Abstract''' || The control of methionyl-transfer ribonucleic acid (tRNA) synthetase (l-methionine: soluble RNA ligase [adenosine monophosphate]) was studied in methionyl-tRNA synthetase mutants of Escherichia coli and Salmonella typhimurium. The results of activity determinations with crude extracts indicate that this enzyme of the E. coli mutant strain possessed a reduced affinity for methionine-tRNA, whereas this enzyme of the S. typhimurium mutant exhibited a decreased affinity for l-methionine. The differential rate of methionyl-tRNA synthetase formation in these two mutants was several-fold greater than that of the respective parental strains. On the other hand, the level of in vivo aminoacylation of methionine-tRNA was only about one-third that of the parent strains. These results suggest that aminoacylation of methionine-tRNA is a necessary step in repression control of methionyl-tRNA synthetase of both E. coli and S. typhimurium strains. | ||
</noinclude> | </noinclude> | ||
|- | |- | ||
| Line 18: | Line 18: | ||
==Annotations {{HelpIcon|Help:Literature}}== | ==Annotations {{HelpIcon|Help:Literature}}== | ||
<!--box uid=63ce1649aab8b3180235b0af7618f667.0.J480cfc44d2dec--> | |||
<!-- | <!-- | ||
****************************************************************************************** | ****************************************************************************************** | ||
| Line 31: | Line 31: | ||
|[{{SERVER}}/colipedia/index.php?title=Special:TableEdit&id=63ce1649aab8b3180235b0af7618f667.0.J480cfc44d2dec&page=0&pagename={{FULLPAGENAMEE}} edit table] || || || || || || || || | |[{{SERVER}}/colipedia/index.php?title=Special:TableEdit&id=63ce1649aab8b3180235b0af7618f667.0.J480cfc44d2dec&page=0&pagename={{FULLPAGENAMEE}} edit table] || || || || || || || || | ||
|} | |} | ||
<!--box uid=63ce1649aab8b3180235b0af7618f667.0.J480cfc44d2dec-- | <!--box uid=63ce1649aab8b3180235b0af7618f667.0.J480cfc44d2dec--> | ||
==EcoliWiki Links {{HelpIcon|Help:Literature}} == | ==EcoliWiki Links {{HelpIcon|Help:Literature}} == | ||
Revision as of 22:51, 25 April 2008
Archibold, ER and Williams, LS (1973) Regulation of methionyl-transfer ribonucleic acid synthetase formation in Escherichia coli and Salmonella typhimurium.J. Bacteriol. 114:1007-13
| Abstract | The control of methionyl-transfer ribonucleic acid (tRNA) synthetase (l-methionine: soluble RNA ligase [adenosine monophosphate]) was studied in methionyl-tRNA synthetase mutants of Escherichia coli and Salmonella typhimurium. The results of activity determinations with crude extracts indicate that this enzyme of the E. coli mutant strain possessed a reduced affinity for methionine-tRNA, whereas this enzyme of the S. typhimurium mutant exhibited a decreased affinity for l-methionine. The differential rate of methionyl-tRNA synthetase formation in these two mutants was several-fold greater than that of the respective parental strains. On the other hand, the level of in vivo aminoacylation of methionine-tRNA was only about one-third that of the parent strains. These results suggest that aminoacylation of methionine-tRNA is a necessary step in repression control of methionyl-tRNA synthetase of both E. coli and S. typhimurium strains. |
| Links | PubMed |
Significance
You can help EcoliWiki by summarizing why this paper is useful
Useful Materials and Methods
You can help Ecoliwiki by describing the useful materials (strains, plasmids, antibodies, etc) described in this paper.
Annotations
| Gene product | Qualifier | GO ID | GO term name | Evidence Code | with/from | Aspect | Notes | Status |
|---|---|---|---|---|---|---|---|---|
| edit table |
EcoliWiki Links
Add links to pages that link here (e.g. gene, product, method pages)
See also
References
See Help:References for how to manage references in EcoliWiki.