Editing Transcription (biology) (section)

== Role of RNA polymerase in post-transcriptional changes in RNA ==
[[File:RNA role in the transcription and interaction with other transcription factors .png|alt=CTD got phosphoralised while getting engaged to DNA and then it plays many important role we will see further|thumb|Image showing RNA polymerase interacting with different factors and DNA during transcription, especially CTD (C Terminal Domain)]]
RNA polymerase plays a very crucial role in all steps including post-transcriptional changes in RNA.
[[File:Ctd role .png|left|thumb|378x378px|The Image shows how CTD is carrying protein for further changes in the RNA]]
As shown in the image in the right it is evident that the CTD (C Terminal Domain) is a tail that changes its shape; this tail will be used as a carrier of splicing, capping and [[polyadenylation]], as shown in the image on the left.<ref>{{Cite journal|last1=Cramer|first1=P.|last2=Armache|first2=K.-J.|last3=Baumli|first3=S.|last4=Benkert|first4=S.|last5=Brueckner|first5=F.|last6=Buchen|first6=C.|last7=Damsma|first7=G.E.|last8=Dengl|first8=S.|last9=Geiger|first9=S.R.|last10=Jasiak|first10=A.J.|last11=Jawhari|first11=A.|date=June 2008|title=Structure of Eukaryotic RNA Polymerases|url=http://dx.doi.org/10.1146/annurev.biophys.37.032807.130008|journal=Annual Review of Biophysics|volume=37|issue=1|pages=337–352|doi=10.1146/annurev.biophys.37.032807.130008|pmid=18573085 }}</ref>