the effect of the sigma subunit of rna polymerase on the rate and asymmetry of the in vitro transcription of escherichia coli and azotobacter vinelandii phage dnas has been studied with purified e. coli and a. vinelandii rna polymerases and hybrid enzymes containing the core subunits of one enzyme and sigma from the other .
C0040649
transcription
C0035681
rna polymerases