Bacillus subtilis & Clostridium difficile



Principal Investigator
Abraham L. Sonenshein
Professor

Program Affiliations
Genetics
Molecular Microbiology

Contact Information
Department of Microbiology
Tufts University
136 Harrison Avenue
Boston, MA 02111

Office (617) 636-6761
Lab (617) 636-6762
Fax (617) 636-0337
Email  
Linc.Sonenshein@tufts.edu
  1. Picossi, S., B. R. Belitsky, and A. L. Sonenshein (2006) Molecular mechanism of the regulation of Bacillus subtilis gltAB expression by GltC. J. Mol. Biol. (in press)
  2. Shivers, R. P., S. Dineen, and A. L. Sonenshein (2006) Positive regulation of Bacillus subtilis ackA by CodY and CcpA: establishing a potential hierarchy in carbon flow. Mol. Microbiol. 62: 811--822.
  3. Serio, A. W., K. B. Pechter, and A. L. Sonenshein (2006) Bacillus subtilis aconitase is required for efficient late sporulation gene expression. J. Bacteriol. 188:6396-6405.
  4. Serio, A. W., and A. L. Sonenshein (2006) Expression of yeast mitochondrial aconitase in Bacillus subtilis. J. Bacteriol. 188:6406-6410.
  5. Levdikov, V. M., E. Blagova, P. Joseph, A. L. Sonenshein and A. J. Wilkinson (2006) The structure of CodY, a GTP- and isoleucine-responsive regulator of stationary phase and virulence in gram-positive bacteria. J. Biol. Chem. 281:11366-11373.
  6. Mani, N., B. Dupuy, and A. L. Sonenshein (2006) Isolation of RNA polymerase from Clostridium difficile and characterization of glutamate dehydrogenase and rRNA gene promoters in vitro and in vivo. J. Bacteriol. 188:96-102.
  7. Dupuy, B., S. Raffestin, S. Matamouros, N. Mani, M. R. Popoff, and A. L. Sonenshein (2006) Regulation of toxin and bacteriocin gene expression in Clostridium by interchangeable RNA polymerase sigma factors. Mol. Microbiol. 60:1044-1057.
  8. Kim, H.-J., M. Mittal, and A. L. Sonenshein (2006) CcpC-dependent regulation of citB and lmo0847 in Listeria monocytogenes. J. Bacteriol.188:179-190.
  9. Joseph, P., M. Ratnayake-Lecamwasam, and A. L. Sonenshein. 2005. A region of B. subtilis CodY protein required for interaction with DNA. J. Bacteriol. 187:4127-4139.
  10. Shivers, R. P., and A. L. Sonenshein. 2005. Bacillus subtilis ilvB operon: an intersection of global regulons. Mol. Microbiol. 56:1549-1559.
  11. Dupuy, B., N. Mani, S. Katayama, and A. L. Sonenshein. 2005. Transcription activation of a UV-inducible Clostridium perfringens bacteriocin gene by a novel ? factor. Mol. Microbiol. 55:1196-1206.
  12. Shivers, R. P., and A. L. Sonenshein. 2004. Activation of the Bacillus subtilis global regulator CodY by direct interaction with branched-chain amino acids. Mol. Microbiol. 53:599-611.
  13. Belitsky, B., and A. L. Sonenshein. 2004. Modulation of activity of Bacillus subtilis regulatory proteins GltC and TnrA by glutamate dehydrogenase. J. Bacteriol. 186:3399-3407.
  14. Belitsky, B., H. J. Kim, and A. L. Sonenshein. 2004. CcpA-dependent regulation of Bacillus subtilis glutamate dehydrogenase synthesis. J. Bacteriol. 186:3392-3398.
  15. Kim, H.-J., S.-I. Kim, M. Ratnayake-Lecamwasam, K. Tachikawa, A. L. Sonenshein, and M. Strauch. 2003. Complex regulation of the Bacillus subtilis aconitase gene. J. Bacteriol. 185:1672-1680.
  16. Haraldsen, J. and A. L. Sonenshein. 2003. Efficient sporulation in Clostridium difficile requires disruption of the sigmaK gene. Mol. Microbiol. 48: 811-821.
  17. Kim, S.-I., C. Jourlin-Castelli, S. R. Wellington and A. L. Sonenshein. 2003. Mechanism of repression by Bacillus subtilis CcpC, a LysR family regulator. J. Mol. Biol. 334:609-624.
  18. Molle, V., Y. Nakaura, R. P. Shivers, H. Yamaguchi, R. Losick, Y. Fujita, and A. L. Sonenshein. 2003. Additional targets of the Bacillus subtilis global regulator CodY identified by chromatin immunoprecipitation and genome-wide transcript analysis. J. Bacteriol. 185:1911-1922.
  19. Blagova, E., V. M. Levdikov, K. Tachikawa, A. L. Sonenshein, and A. J. Wilkinson. 2002. Crystallization of the GTP-dependent transcriptional regulator CodY from Bacillus subtilis. Acta Crystall. D59:155-157.
  20. Mani, N., D. Lyras, L. Barroso, P. Howarth, T. Wilkins, J. I. Rood, A. L. Sonenshein, and B. Dupuy. 2002. Environmental response and autoregulation of Clostridium difficile TxeR, a sigma factor for toxin gene expression. J. Bacteriol. 184:5971-5978. PubMed
  21. Belitsky, B. R., and A. L. Sonenshein. 2002. GabR, a member of a novel protein family, regulates utilization of gamma-aminobutyrate in Bacillus subtilis. Mol. Microbiol. 45:569-583. PubMed
  22. Kim, H.-J., A. Roux, and A. L. Sonenshein. 2002. Direct and indirect roles of CcpA in regulation of Bacillus subtilis Krebs cycle genes. Mol. Microbiol. 45:179-190. PubMed
  23. Kim, H.-J., C. Jourlin-Castelli, S.-I. Kim, and A. L. Sonenshein. 2002. Regulation of the Bacillus subtilis ccpC gene by CcpA and CcpC. Mol. Microbiol. 43:399-410. PubMed
  24. Ratnayake-Lecamwasam, M., P. Serror, K.-W. Wong, and A. L. Sonenshein. 2001. Bacillus subtilis CodY represses early stationary phase genes by sensing GTP levels. Genes Dev. 15:1093-1103. PubMed
  25. Belitsky, B. R., L. V. Wray, Jr., S. H. Fisher, D. E. Bohannon, and A. L. Sonenshein. 2000. Role of TnrA in nitrogen source-dependent repression of Bacillus subtilis glutamate synthase gene expression. J. Bacteriol. 182:5939-5947. PubMed
  26. Jourlin-Castelli, C., N. Mani, M. Nakano, and A. L. Sonenshein. 2000. CcpC, a novel regulator of the LysR family required for glucose repression of the citB gene in Bacillus subtilis. J. Mol. Biol. 295:865-878. PubMed
  27. Alén, C., and A. L. Sonenshein. 1999. Bacillus subtilis aconitase is an RNA-binding protein. Proc. Natl. Acad. Sci. 96:10412-10417. PubMed
  28. Belitsky, B. R., and A. L. Sonenshein. 1999. An enhancer element located downstream of the major glutamate dehydrogenase gene of Bacillus subtilis. Proc. Natl. Acad. Sci. 96:10290-10295. PubMed
  29. Matsuno, K., T. Blais, A. W. Serio, T. Conway, T. M. Henkin, and A. L. Sonenshein. 1999. Metabolic imbalance and sporulation in an isocitrate dehydrogenase mutant of Bacillus subtilis. J. Bacteriol. 181:3382-3391. PubMed
  30. Belitsky, B., and A. L. Sonenshein. 1998. Role and regulation of Bacillus subtilis glutamate dehydrogenase genes. J. Bacteriol. 180:6298-6305. PubMed
  31. Dupuy, B., and A. L. Sonenshein. 1998. Regulated transcription of the Clostridium difficile toxin genes. Molec. Microbiol. 27:107-120. PubMed