Take the 2-minute tour ×  I am working with a network object
where the nodes are different events in molecular biology.
Specifically; Catalytic activity of X, RNA expression of X, GTP-
bound activity of X, Kinase activity of X, Oxidoreductase
activity of X, Phosphatase axtivity of X, Transcriptional
activity of X, Phosphorylation at residue Y.  What is the
difference between RNA expression and Transcriptional activity?
And which is the one that an Affymetrix microarray is measuring?
eg.; transcriptional activity of KLF2, transcriptional activity
of ATF2 RNA expression of HSPA1A RNA, and expression of CYP1B1
share|improve this question I'm not familiar with what you're
doing, but off the top of my head I'd say that the RNA
Expression might be referring to everything post-nucleus in that
the Introns are missing. The Transcriptase would show more
activity because it would still Transcribe both Introns and
Exons. –  MCM Feb 20 '13 at 12:55  1 Answer 1  In your case, RNA
expression and transcriptional activity pr