a comparison of ig transcription rates before and in the course of lps stimulation , as determined by in vitro transcriptional run-on assays , has shown that there is a large increase of the rna polymerase density on both mu- and kappa-loci ( 30-60-fold ) , which is quantitatively comparable with the accumulation of both mu- and kappa-mrnas at the steady state mrna level .
C0040649
transcriptional
C0035681
rna polymerase