Regulatory sequences of two flagellin genes in Bacillus thuringiensis subsp. alesti

1 Department of Microbiology, Stockholm University, S-106 91 Stockholm, Sweden 2 Department of Pediatrics, Division of Hematology and Oncology, Milton S. Hershey Medical Center, PO Box 850, Hershey, PA 17033, USA ABSTRACT Summary: Two highly homologous flagellin genes, flaA and flaB, are expressed in Bacillus thuringiensis subsp. alesti. Both genes were found to be transcribed during vegetative growth. After the onset of sporulation, transcripts could not be detected. Both flaA and flaB were found to be transcribed from 70 -like promoters. In addition, the 3'-terminal half of flaA was cloned and sequenced, completing the sequence of flaA. Author for correspondence: Ann Lövgren. Tel: +46 8 164158. Fax: +46 8 6129552. e-mail: ann. lovgren@mibi.su.se Keywords: Bacillus thuringiensis, , flagellin gene, regulatory sequence