[Cloning and sequencing of the proBA gene from the selected mutant resistant to proline analogue from Bacillus subtilis].

Abstract excerpt

NTG was used to make chemical mutation for Bacillus subtilis 93151. An enhanced osmotolerant mutant was obtained, which could grow in minimal medium containing 14% NaCl (w/v) and was not subject to proline-mediated feedback repression. The content of the intracellular free proline from the mutant increased rapidly with the rising of NaCl concentration. A 2.3 kb DNA fragment from the mutant was amplified using PCR...

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