at high temperature , however , rna polymerases from mutants carrying rpob2b7 and rpoc4 , affecting the beta and beta ' subunits , respectively , showed decreased transcription from the high-affinity slow-transcribable promoter rrnep2 whereas the rpoc92 and rpob906 x rpoc907 mutant enzymes both lost transcription activity from the strong promoter lacp ( uv5 ) .
C0035681
rna polymerases
C0040649
transcription