... Methods 2009,47:1-5.22. Vassylyev DG, Sekine S, Laptenko O, Lee J, Vassylyeva MN, Borukhov S,Yokoyama S: Crystal structure of a bacterial RNA polymerase holoenzymeat 2.6 A resolution. Nature ... wt T4 DNA, each cytosine in thissequence is modified by the presence of a hydroxy-methylated, glucosylated moiety at cytosine position 5.This modification places a large, bulky group within ... stabi-lity of such transcripts once they are formed.As middle transcription begins, certain early RNAsdecay rapidly after their initial burst of transcription.This arises from the activity of the...