PMID: 8990306Jan 1, 1997Paper

Expression of AbrB, a transition state regulator from Bacillus subtilis, is growth phase dependent in a manner resembling that of Fis, the nucleoid binding protein from Escherichia coli

Journal of Bacteriology
M O'Reilly, K M Devine

Abstract

The transition state regulator AbrB functions as an activator, a repressor, and a preventer of gene expression in Bacillus subtilis. In this paper, we show that expression of abrB is growth phase dependent. Accumulation of abrB transcript is restricted to a short period spanning the transition between the lag and exponential phases of the growth cycle. The level of abrB transcript then falls sharply, and transcript cannot be detected at the mid-exponential period of the growth cycle. The level of AbrB protein is also maximal during early exponential growth but decreases gradually throughout the remainder of the growth cycle. The abrupt reduction of abrB transcript level during the early period of the growth cycle is effected by the phosphorylated form of the response regulator Spo0p3and to a lesser extent by negative autoregulation. The growth cycle-dependent expression of abrB is very similar to that observed for fis in Escherichia coli and in Salmonella typhimurium. Although AbrB and Fis are not homologous proteins, they display extensive similarity in terms of size, DNA binding characteristics, growth cycle-dependent patterns of expression, and their control over the expression of a varied group of operons. We hypothesize th...Continue Reading

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Citations

Oct 9, 2008·Proceedings of the National Academy of Sciences of the United States of America·Allison V BanseRichard Losick
Apr 16, 2014·Molecular Microbiology·Ahasanul KobirIvan Mijakovic
Dec 31, 2014·Applied Microbiology and Biotechnology·Mareike Jakobs, Friedhelm Meinhardt
Jul 24, 2008·Molecular Microbiology·Kazuo Kobayashi
Apr 6, 2005·Molecular Genetics and Genomics : MGG·Torsten KoburgerM Hecker
Feb 15, 2003·FEMS Microbiology Letters·Leendert W HamoenPascale Serror
Apr 12, 2015·Applied Microbiology and Biotechnology·Jabel Dinorín-Téllez-GirónVíctor Eric López-Y-López
Jul 9, 2014·Current Microbiology·Astrid Magdalena Lozano GonéVíctor Eric López Y López
Jan 6, 2016·Journal of Bacteriology·Giulia BarbieriBoris R Belitsky
Apr 21, 2010·Proceedings of the National Academy of Sciences of the United States of America·Arnaud ChastanetRichard M Losick
Feb 13, 2007·Applied and Environmental Microbiology·Reindert NijlandOscar P Kuipers
Dec 26, 2001·Journal of Bacteriology·Elke Saile, Theresa M Koehler
Dec 3, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Siqi YuanJun Liu
Nov 13, 1998·Journal of Bacteriology·M B Beach, R Osuna
Aug 1, 1997·Journal of Bacteriology·K S McIver, J R Scott

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