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  • Title: A temporally regulated promoter from Bacillus subtilis is transcribed only by an RNA polymerase with a 37,000 dalton sigma factor.
    Author: Goldfarb DS, Wong SL, Kudo T, Doi RH.
    Journal: Mol Gen Genet; 1983; 191(2):319-25. PubMed ID: 6312273.
    Abstract:
    A 1,250 base pair Bacillus subtilis chromosomal HindIII restriction fragment (S fragment) has been cloned into the B. subtilis expression-probe plasmid pGR71. The S fragment induces the expression of the pGR71 chloramphenicol resistance gene shortly after the initiation of sporulation. The transcriptional promoter responsible for the expression of this temporally regulated genetic element has been identified and mapped in vitro. This promoter is recognized exclusively by the minor B. subtilis RNA polymerase that contains the 37,000 dalton sigma factor.
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