Welcome to the Bacillus Genetic Stock Center (BGSC) web site.

Our primary mission is to maintain genetically characterized strains, cloning vectors, and bacteriophage for the genus Bacillus and related organisms and to distribute these materials without prejudice to qualified scientists and educators throughout the world. Since 1978, the National Science Foundation has funded the activities of the BGSC. The Department of Microbiology in the College of Arts and Sciences at The Ohio State University provides facilities and administrative support. The Director of the BGSC is Dr. Daniel R. Zeigler.

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New! Protease-free Bacillus subtilis host

Bacillus subtilis is widely used as a production platform for synthesizing enzymes, pharmaceuticals, and fine chemicals (1). Unfortunately, B. subtilis 168 secretes no fewer than seven proteases during vegetative growth and stationary phase. Strains in which multiple protease genes have been inactivated have proved to be superior to wild type strains in production of foreign proteins (2, 3). I have now constructed a seven-protease deletion strain that is free from antibiotic resistance genes or integrated plasmids. This strain, B. subtilis KO7, was generated from the commonly used laboratory host, PY79, by sequentially knocking out the coding sequences. At each step, I transformed

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