|1.||Sharma, Umender K: 1 article (09/2010)|
|2.||Chatterji, Dipankar: 1 article (09/2010)|
|3.||Meibom, Karin L: 1 article (08/2009)|
|4.||Charbit, Alain: 1 article (08/2009)|
|5.||Waldor, Matthew: 1 article (08/2009)|
|6.||Livny, Jonathan: 1 article (08/2009)|
|7.||Grall, Nathalie: 1 article (08/2009)|
|8.||Barel, Monique: 1 article (08/2009)|
|9.||Stahl, David A: 1 article (06/2007)|
|10.||Samudrala, Ram: 1 article (06/2007)|
08/01/2004 - "coli sigma(70) promoter elements increased gfp transcription to levels similar to that driven by the heat shock promoter, phsp60, of Mycobacterium bovis BCG. "
06/01/2003 - "Primer extension analysis revealed a strong, heat-inducible transcription start site 59 nt upstream of groES, preceded by a sequence typical for the Escherichia coli heat-shock promoters recognized by the sigma(32) factor, and a weak transcription start site 25 nt upstream the groES gene, preceded by a sequence typical for sigma(70) promoters. "
10/16/1995 - "Upon heat shock induction there is a transient increase in the rate of transcription of approximately 20 heat shock genes, whose promoters are recognized by the RNAP-sigma 32 rather than the RNAP-sigma 70 holoenzyme. "
08/01/1992 - "Although RpoH113 sigma 32 continues to be made when wild-type sigma 70 is present, cells show reduced ability to express heat shock genes and to transcribe from heat shock promoters. "
05/01/1986 - "E sigma 32 was more active than E sigma 70 with heat shock genes; however, non-heat-shock genes were not transcribed by E sigma 32. "
09/01/2010 - "In order to facilitate transcription by alternative sigma factors during nutrient starvation, the bacterial cell uses multiple strategies by which the transcriptional ability of sigma(70) is diminished in a reversible manner. "
09/01/2010 - "We review the recent trends in understanding the regulation of sigma(70) by (p)ppGpp, DksA, Rsd and 6S RNA and present a case for evolving a unified model of RNAP redistribution during starvation by modulation of sigma(70) activity in E. "
06/01/2007 - "The distal sigma(70) type amoCAB promoter was constitutively active in the presence of ammonia, but the proximal promoter was only active when cells were recovering from ammonia starvation. "
07/01/1994 - "The same start site was used in transcription during carbon starvation, osmotic stress, or oxidative stress, suggesting that the pexB promoter can be recognized in vivo by both sigma 38 and sigma 70, depending, presumably, on the presence of appropriate transcriptional factors. "
02/01/1994 - "Induction of this gene during a heat-shock treatment is demonstrated to be the result of transcriptional activation of a sigma 70-dependent promoter which has previously been shown to be activated also during carbon starvation-induced growth arrest. "
08/13/1999 - "The largest contribution to the middle-late competition is made by gp55, the late sigma factor, but not enough of gp55 is produced during T4 infection to shut off middle transcription by direct competition with sigma(70). "
09/05/1987 - "After T4 infection, the core enzyme is ADP-ribosylated in each alpha subunit, and a T4-coded 11.4-kDa protein (rpbA) binds tightly to it; these modifications do not save gp55 from displacement by sigma 70. "
06/08/2001 - "During infection of Escherichia coli, the phage T4 early protein AsiA inhibits open complex formation by the RNA polymerase holoenzyme Efinal sigma(70) at -10/-35 bacterial promoters through binding to region 4.2 of the final sigma(70) subunit. "
07/15/2000 - "We isolated RNA polymerase (RNAP) from Rhizobium leguminosarum, the nitrogen-fixing symbiont of peas and VICIA: Its 91 kDa subunit, which is homologous to sigma(70) of Escherichia coli RNAP, is necessary for transcription of the regulatory nodD gene, which in the presence of certain flavonoids induces transcription of other nod genes that are needed for the early steps of infection. "
|4.||Contagious Ecthyma (Orf)
08/01/1992 - "The ORF is preceded by consensus sequences for a ribosomal binding site and a sigma 70 promoter. "
10/01/2006 - "In addition to mpd gene ORF and tnpA ORF, three other ORFs showed high homology to the permease component of ABC-type transport system, the general secretion pathway protein B, and the RNA polymerase sigma 70 factor, respectively. "
01/01/1995 - "DNA sequence analysis of the complementing region identified one open reading frame (ORF) termed pbrA (pseudobactin regulation activation) and the deduced amino acid sequence shows domains with significant homology to a number of ECF (extracytoplasmic function) transcriptional regulators of the sigma 70 sigma factor family, including fecl required for expression of the ferric dicitrate outer-membrane receptor protein of E. "
|5.||Lyme Disease (Disease, Lyme)
|2.||DNA-Directed RNA Polymerases (RNA Polymerase)
|3.||Proteins (Proteins, Gene)
|7.||Transcription Factors (Transcription Factor)
|9.||Membrane Proteins (Integral Membrane Proteins)
|10.||Heat-Shock Proteins (Heat-Shock Protein)