During sporulation in Bacillus subtilis,inactive precursor forms of new sigma factors are activated at the appropriate time by which mechanism?

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During sporulation in Bacillus subtilis, inactive precursor forms of new sigma factors are activated by proteolysis at the appropriate time. This involves the cleavage of the inactive pro-sigma factor to produce the active form that can bind to RNA polymerase and initiate transcription. This process is mediated by specific proteases that are activated at different stages of sporulation.

During Sporulation in Bacillus Subtilis,inactive Precursor Forms of New Sigma