Synthesis of the sigmaD protein is not sufficient to trigger expression of motility functions in Bacillus subtilis.
The gene encoding sigmaD, sigD, is transcribed from two promoter regions, the fla/che promoter region in front of the fla/che operon and PsigD directly in front of sigD. If sigmaD is translated from transcripts originating from PsigD, the cell is unable to express motility functions but synthesizes autolysins. Therefore, one function of the additional promoter is to allow the cell to express autolysins without expressing motility functions as well.
Yang
D H
DH
Lehrstuhl für Mikrobiologie, Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany.
von Kalckreuth
J
J
Allmansberger
R
R
D001412:Bacillus subtilis / Q000235:genetics*; D001426:Bacterial Proteins / Q000096:biosynthesis* / Q000235:genetics*; D003470:Culture Media; D005408:Flagellin; D008124:Locomotion / Q000235:genetics*; D009238:N-Acetylmuramoyl-L-alanine Amidase; D011401:Promoter Regions, Genetic; D014176:Protein Biosynthesis; D012808:Sigma Factor / Q000096:biosynthesis* / Q000235:genetics*; D014158:Transcription, Genetic
D001426:Bacterial Proteins; D003470:Culture Media; C096721:FleB protein, Yersinia enterocolitica; D012808:Sigma Factor; D005408:Flagellin; D009238:N-Acetylmuramoyl-L-alanine Amidase