WebInductively coupled plasma mass spectrometry analyses revealed a significant effect of the Δ rpoS mutation on the cellular concentration of manganese, magnesium, cobalt and potassium. WebA rpoS null mutation had a small positive effect on LRT9 adherence to epithelial cells, but the expression of the EPEC adhe-sins BfpA and intimin was not significantly affected by the mutation. E2348/69 adherence was not significantly affected by the rpoS mutation. The intrinsic level of RpoS was higher in
p73-induced apoptosis: a question of compartments and …
WebJul 26, 1996 · The rpoS att mutations that confer the GASP phenotype also make cells more sensitive to different environmental assaults and thus are likely to be selected against under other conditions. Nonetheless, many laboratory strains and natural isolates of E. coli show allelic variation in rpoS , suggesting that rapid population takeovers occur ... WebJan 13, 2009 · Under this regimen, RpoS was quite stable in WT strains (with a half-life >20 min) but disappeared rapidly in both the iraD null and the iraD ::Tn 5 mutants. Mutation of RssB stabilized RpoS, even in the absence of IraD, both with and without peroxide treatment. Thus, IraD effects on RpoS stability correlate with effects on DNA damage … eib project database
Heat acclimation and the role of RpoS in prolonged heat shock of ...
WebOct 1, 2013 · The alternative sigma factor RpoS is a central regulator of the stress response in many Proteobacteria, acting both during exponential growth and in stationary phase.The small protein Crl increases the interaction between RpoS and RNA polymerase and thereby activates certain RpoS-dependent promoters. However, the growth-phase dependence … WebDec 11, 2014 · The amount of variation in rpoS mutations was not quite as dramatic as in arcA, but substantial nonetheless. In the LB-evolved E. coli populations we predominately observed SNPs, while in the BHI-evolved E. coli populations mutations in rpoS resulted in stop codons, large deletions or frame shift mutations, suggesting a loss of function . WebFeb 27, 2004 · p73, an important developmental gene, shares a high sequence homology with p53 and induces both G(1) cell cycle arrest and apoptosis. However, the molecular … te marae ohine