Capping complex formation Authored: Buratowski, S, 2003-10-15 15:18:41 Edited: Gopinathrao, G, 0000-00-00 00:00:00 Reactome Database ID Release 4377077 Reactome, http://www.reactome.org ReactomeREACT_2186 The capping enzyme binds the 5'-end of the nascent transcript soon after it is synthesized on the DNA template, and results in the formation of the capping complex along with the C-terminal domain of RNA polymerase II, and Spt5. Capping complex (initial) CE:Pol II CTD:Spt5 complex DNA nascent pre-mRNA transcript