An isogenic pair of Escherichia coli mutants (relA+ tufB valSts and relA1 tufB valSts) has been cultured at several temperatures to establish various degrees of limitation for valyl-tRNA synthetase. The biosynthetic rate of 16 identifiable proteins, most of which are components of the transcription
Differential effect of amino acid starvation on polysome decay in escherichia coli
โ Scribed by J. Roche; A. J. Cozzone; P. Donini; V. Santonastaso
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 281 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0301-4851
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
It was found that DL-lactate, acetate, pyruvate, succinate, fnmarate, malate, oxalacetate and L-aspartate stimulated considerably the production of the antitumor L-asparaginase EC-2 by a colieinogenie strain of E. coli in Tryptone medium. While in the absence of these stimulative substances enzyme p
Escherichia coli K12 Hfr H Tsxs Strs and F- Pro- Tsxr His- Arg- Strr bacteria were conjugated in the absence of arginine with or without glucose. The efficiency of conjugation, measured by the frequency of Pro+ and His+ recombinants was not affected. Arginine starvation alone did not affect the tsxs
'Leghorn', 'Cornish' and 'White Rock' hens were subjected to starvation. Free amino acids were determined in blood samples taken after 48, 72 and 96 h of starvation. A progressive decrease in concentration of the majority of amino acids was found. Changes in amino acid concentrations during starvati