using the in vitro mixed transcription system ( kajitani , m. and ishihama , a . ( 1983 ) nucleic acids res . 11 , 671-686 ) , we determined the two parameters of the promoter strength , i.e. , the rate of open complex formation between rna polymerase and promoter , and the saturation level of the open complex formation at equilibrium , for the promoters of ribosomal rna ( rrne ) , ribosomal protein s1 ( rpsa ) and reca protein ( reca ) operons from escherichia coli .
C0040649
transcription
C0035681
rna