Virulence gene expression is independent of ResDE-regulated respiration control in Bacillus anthracis.
The ResDE two-component system regulates the synthesis of several components of the aerobic and anaerobic respiratory pathways in bacilli. The ResD response regulator transcription factor has been implicated in the regulation of virulence factors in a number of gram-positive species, including Bacillus anthracis. The precise deletions of resD and resE in B. anthracis that retained the classical respiratory phenotypes did not affect the expression of the gene for the protective antigen of the anthrax toxin, pagA, or that of the toxin regulator, atxA. The results indicate that the loss of ResDE-controlled respiratory capacity does not affect the synthesis of anthrax toxin.
Department of Molecular and Experimental Medicine, Division of Cellular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, USA.
Adam C
AC
Wilson
James A
JA
Hoch
Marta
M
Perego
D000942:Antigens, Bacterial / Q000096:biosynthesis*; D001408:Bacillus anthracis / Q000254:growth & development / Q000502:physiology*; D001426:Bacterial Proteins / Q000235:genetics / Q000378:metabolism*; D001427:Bacterial Toxins / Q000096:biosynthesis*; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism*; D017353:Gene Deletion; D015964:Gene Expression Regulation, Bacterial; D016254:Mutagenesis, Insertional; D012119:Respiration; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*
D000942:Antigens, Bacterial; D001426:Bacterial Proteins; D001427:Bacterial Toxins; D004268:DNA-Binding Proteins; C100386:ResD protein, Bacillus subtilis; D014157:Transcription Factors; C030325:anthrax toxin