Results
author = "Ron, Eliora"
Polysome Turnover During Amino Acid Starvation in Escherichia coli
Author(s) :
Ron, Eliora Z.
Description :
The experiments presented in this paper support earlier evidence that ribosomes are released from polysomes when they encounter a codon for which no charged transfer ribonucleic acid is available. However, it is further shown that these ribosomes then reinitiate and resume translation. The size and ...
Repository :
Europe PubMed Central
Language(s) :
English
Dual Role of FtsH in Regulating Lipopolysaccharide Biosynthesis in Escherichia coli▿
Description :
In Escherichia coli, FtsH (HflB) is a membrane-bound, ATP-dependent metalloendoprotease belonging to the AAA family (ATPases associated with diverse cellular activities). FtsH has a limited spectrum of known substrates, including the transcriptional activator σ32. FtsH is the only known E. coli prot...
Repository :
Europe PubMed Central
Language(s) :
English
Translocation in Bacillus subtilis: Irreversible Inactivation of Elongation Factor G and Viability of a Temperature-Sensitive Mutant
Description :
A temperature-sensitive mutant of Bacillus subtilis 168 lost its viability irreversibly when grown at temperatures higher than 50 C. It is suggested that this loss of viability is due to irreversible alteration of elongation factor G activity, which was shown in vitro by two different assay methods.
Repository :
Europe PubMed Central
Language(s) :
English
Growth Rate of Escherichia coli at Elevated Temperatures: Limitation by Methionine
Description :
When Escherichia coli growing in minimal medium is shifted from 37 C to any temperature in the range 40 to 45 C, the growth rate immediately assumes a new, lower value, characteristic of that temperature. The decrease is shown to be due, in several strains, to decreased activity of the first enzyme ...
Repository :
Europe PubMed Central
Language(s) :
English
Synchronization of Cell Division in Escherichia coli by Elevated Temperatures: a Reinterpretation
Description :
Synchronization of cell division resulting from exposure of Escherichia coli to elevated temperatures can be prevented by the presence of methionine. It is suggested that limitation of endogenous methionine at the elevated temperature might be the cause for the subsequent synchronization of cell div...
Repository :
Europe PubMed Central
Language(s) :
English
Growth Rate of Escherichia coli at Elevated Temperatures: Reversible Inhibition of Homoserine Trans-Succinylase
Description :
The preceding paper (10) showed that the growth of Escherichia coli is slowed, without killing, at 40 to 45 C, and that in the several strains tested the cause is a decrease in the activity of homoserine trans-succinylase. These temperatures are now shown to inhibit the enzyme directly, in crude ext...
Repository :
Europe PubMed Central
Language(s) :
English
Extensive Gene Diversity in Septicemic Escherichia coli Strains
Description :
Extraintestinal pathogenic Escherichia coli strains (ExPEC) are the cause of a diverse spectrum of invasive infections in humans and animals, and these infections often lead to septicemia. Strains of serogroups O2 and O78 of E. coli are involved in human urinary tract infections and newborn meningit...
Repository :
Europe PubMed Central
Language(s) :
English
New Fimbrial Gene Cluster of S-Fimbrial Adhesin Family
Description :
Fimbrial adhesins that mediate attachment to host cells are produced by most virulent Escherichia coli isolates. These virulence factors play an important role in the initial stages of bacterial colonization and also in determination of the host and tissue specificity. Isolates belonging to serotype...
Repository :
Europe PubMed Central
Language(s) :
English
Emulsifying Activities of Purified Alasan Proteins from Acinetobacter radioresistens KA53
Description :
The bioemulsifier of Acinetobacter radioresistens KA53, referred to as alasan, is a high-molecular-weight complex of polysaccharide and protein. The emulsifying activity of the purified polysaccharide (apo-alasan) is very low. Three of the alasan proteins were purified by preparative sodium dodecyl ...
Repository :
Europe PubMed Central
Language(s) :
English
YbeY, a Heat Shock Protein Involved in Translation in Escherichia coli▿
Description :
Here we provide evidence that YbeY, a conserved heat shock protein with unknown function, is involved in the translation process. ybeY deletion mutants are temperature sensitive and have a significantly reduced thermotolerance. Nonetheless, there appears to be no damage of the protein quality contro...
Repository :
Europe PubMed Central
Language(s) :
English