bacillus subtilis sigma 28-specific promoters ( p28 ) are utilized by a minor form of b. subtilis rna polymerase ( sigma 28rna polymerase ) and not by the predominant rna polymerases of b. subtilis ( sigma 43 rna polymerase ) or escherichia coli ( sigma 70 rna polymerase ) .
C0035679
rna polymerases
C0035681
rna polymerase