Bacillus subtilis ResD induces expression of the potential regulatory genes yclJK upon oxygen limitation

Elisabeth Härtig, Hao Geng, Anja Hartmann, Angela Hubacek, Richard Münch, Rick W. Ye, Dieter Jahn, Michiko Nakano

Research output: Contribution to journalArticle

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Abstract

Transcription of the yclJK operon, which encodes a potential two-component regulatory system, is activated in response to oxygen limitation in Bacillus subtilis. Northern blot analysis and assays of yclJ-lacZ reporter gene fusion activity revealed that the anaerobic induction is dependent on another two-component signal transduction system encoded by resDE. ResDE was previously shown to be required for the induction of anaerobic energy metabolism. Electrophoretic mobility shift assays and DNase I footprinting experiments showed that the response regulator ResD binds specifically to the yclJK regulatory region upstream of the transcriptional start site. In vitro transcription experiments demonstrated that ResD is sufficient to activateyclj transcription. The phosphorylation of ResD by its sensor kinase, ResE, highly stimulates its activity as a transcriptional activator. Multiple nucleotide substitutions in the ResD binding regions of the yclJ promoter abolished ResD binding in vitro and prevented the anaerobic induction of yclJK in vivo. A weight matrix for the ResD binding site was defined by a bioinformatic approach. The results obtained suggest the existence of a new branch of the complex regulatory system employed for the adaptation of B. subtilis to anaerobic growth conditions.

Original languageEnglish (US)
Pages (from-to)6477-6484
Number of pages8
JournalJournal of Bacteriology
Volume186
Issue number19
DOIs
StatePublished - Oct 2004

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Regulator Genes
Bacillus subtilis
Oxygen
Anaerobiosis
Lac Operon
Nucleic Acid Regulatory Sequences
Gene Fusion
Deoxyribonuclease I
Electrophoretic Mobility Shift Assay
Operon
Computational Biology
Reporter Genes
Genetic Promoter Regions
Northern Blotting
Energy Metabolism
Signal Transduction
Phosphotransferases
Nucleotides
Binding Sites
Phosphorylation

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Immunology

Cite this

Bacillus subtilis ResD induces expression of the potential regulatory genes yclJK upon oxygen limitation. / Härtig, Elisabeth; Geng, Hao; Hartmann, Anja; Hubacek, Angela; Münch, Richard; Ye, Rick W.; Jahn, Dieter; Nakano, Michiko.

In: Journal of Bacteriology, Vol. 186, No. 19, 10.2004, p. 6477-6484.

Research output: Contribution to journalArticle

Härtig, Elisabeth ; Geng, Hao ; Hartmann, Anja ; Hubacek, Angela ; Münch, Richard ; Ye, Rick W. ; Jahn, Dieter ; Nakano, Michiko. / Bacillus subtilis ResD induces expression of the potential regulatory genes yclJK upon oxygen limitation. In: Journal of Bacteriology. 2004 ; Vol. 186, No. 19. pp. 6477-6484.
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