Identification of the sporulation gene spoOA product of Bacillus subtilis

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Abstract

A 2.4-kilobase fragment of the Bacillus subtilis chromosome containing the wild-type spoOA gene derived from the φ105dspoOA+-Bc-1 transducing phage was cloned onto plasmid pBR322 in Escherichia coli. A recombinant plasmid harboring the mutant spoOA12 allele on the 2.4-kilobase insert was also constructed from the φ105dspoOA12-1 phage DNA and pBR322. Protein products synthesized in reponse to plasmid DNA in a DNA-directed cell-free system derived from E. coli were analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. A protein of approximately 27,500 daltons synthesized with the recombinant plasmid DNA harboring the wild-type spoOA gene as template was not formed with the recombinant plasmid DNA harboring the spoOA12 allele. Since the spoOA12 mutation is a nonsense mutation, we conclude that the 27.5-kilodalton protein is the product of the spoOA gene. © 1984.

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Kudoh, J., Ikeuchi, T., & Kurahashi, K. (1984). Identification of the sporulation gene spoOA product of Bacillus subtilis. Biochemical and Biophysical Research Communications, 122(3), 1104–1109. https://doi.org/10.1016/0006-291X(84)91205-1

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