Literature DB >> 9231412

Regulation of nitrogen fixation in Azospirillum brasilense.

Y Zhang1, R H Burris, P W Ludden, G P Roberts.   

Abstract

The regulation of nitrogen fixation in Azospirillum brasilense is very complicated, and it responds to exogenous fixed nitrogen or a change of oxygen concentration. This regulation occurs at both transcriptional and posttranslational levels. Unlike regulation seen in Klebsiella pneumoniae, transcription of nifA does not require NTRB/NTRC in A. brasilense and the expression of nifHDK is controlled by posttranslational regulation of NIFA activity. Addition of NH4+ or a shift from microaerobic to anaerobic conditions also causes a rapid loss of nitrogenase activity in A. brasilense. This posttranslational regulation of nitrogenase activity involves the DRAT/DRAG regulatory system, which is similar to that of Rhodospirillum rubrum. Both DRAT and DRAG activities are regulated in vivo, but the mechanisms for their regulation are unknown.

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Year:  1997        PMID： 9231412     DOI： 10.1111/j.1574-6968.1997.tb10428.x

Source DB:  PubMed          Journal:  FEMS Microbiol Lett        ISSN： 0378-1097            Impact factor:   2.742


  18 in total

Review 1.  P(II) signal transduction proteins, pivotal players in microbial nitrogen control.

Authors:  T Arcondéguy; R Jack; M Merrick
Journal:  Microbiol Mol Biol Rev       Date:  2001-03       Impact factor: 11.056

2.  Crystal structure of the GlnZ-DraG complex reveals a different form of PII-target interaction.

Authors:  Chitra Rajendran; Edileusa C M Gerhardt; Sasa Bjelic; Antonietta Gasperina; Marcelo Scarduelli; Fábio O Pedrosa; Leda S Chubatsu; Mike Merrick; Emanuel M Souza; Fritz K Winkler; Luciano F Huergo; Xiao-Dan Li
Journal:  Proc Natl Acad Sci U S A       Date:  2011-11-09       Impact factor: 11.205

3.  Nitrogenase switch-off by ammonium ions in Azospirillum brasilense requires the GlnB nitrogen signal-transducing protein.

Authors:  Giseli Klassen; Emanuel M Souza; M Geoffrey Yates; Liu Un Rigo; Roberta M Costa; Juliana Inaba; Fábio O Pedrosa
Journal:  Appl Environ Microbiol       Date:  2005-09       Impact factor: 4.792

4.  Effect of perturbation of ATP level on the activity and regulation of nitrogenase in Rhodospirillum rubrum.

Authors:  Yaoping Zhang; Edward L Pohlmann; Gary P Roberts
Journal:  J Bacteriol       Date:  2009-06-19       Impact factor: 3.490

5.  Mutagenesis and functional characterization of the glnB, glnA, and nifA genes from the photosynthetic bacterium Rhodospirillum rubrum.

Authors:  Y Zhang; E L Pohlmann; P W Ludden; G P Roberts
Journal:  J Bacteriol       Date:  2000-02       Impact factor: 3.490

6.  Effect of P(II) and its homolog GlnK on reversible ADP-ribosylation of dinitrogenase reductase by heterologous expression of the Rhodospirillum rubrum dinitrogenase reductase ADP-ribosyl transferase-dinitrogenase reductase-activating glycohydrolase regulatory system in Klebsiella pneumoniae.

Authors:  Y Zhang; E L Pohlmann; C M Halbleib; P W Ludden; G P Roberts
Journal:  J Bacteriol       Date:  2001-03       Impact factor: 3.490

7.  Influence of different factors on the nitrogenase activity of the engineered Escherichia coli 78-7.

Authors:  Li-hong Zhang; San-feng Chen
Journal:  World J Microbiol Biotechnol       Date:  2015-04-08       Impact factor: 3.312

8.  Functional characterization of three GlnB homologs in the photosynthetic bacterium Rhodospirillum rubrum: roles in sensing ammonium and energy status.

Authors:  Y Zhang; E L Pohlmann; P W Ludden; G P Roberts
Journal:  J Bacteriol       Date:  2001-11       Impact factor: 3.490

9.  The nitrogenase regulatory enzyme dinitrogenase reductase ADP-ribosyltransferase (DraT) is activated by direct interaction with the signal transduction protein GlnB.

Authors:  Vivian R Moure; Karamatullah Danyal; Zhi-Yong Yang; Shannon Wendroth; Marcelo Müller-Santos; Fabio O Pedrosa; Marcelo Scarduelli; Edileusa C M Gerhardt; Luciano F Huergo; Emanuel M Souza; Lance C Seefeldt
Journal:  J Bacteriol       Date:  2012-11-09       Impact factor: 3.490

10.  In vitro interactions between the PII proteins and the nitrogenase regulatory enzymes dinitrogenase reductase ADP-ribosyltransferase (DraT) and dinitrogenase reductase-activating glycohydrolase (DraG) in Azospirillum brasilense.

Authors:  Luciano F Huergo; Mike Merrick; Rose A Monteiro; Leda S Chubatsu; Maria B R Steffens; Fábio O Pedrosa; Emanuel M Souza
Journal:  J Biol Chem       Date:  2009-01-08       Impact factor: 5.157
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