Adenosine, NAD and FAD can initiate template-dependent RNA a synthesis catalyzed by Escherichia Coli RNA polymerase

Malygin, A. G., & Shemyakin, M. F. (1979). Adenosine, NAD and FAD can initiate template-dependent RNA a synthesis catalyzed by Escherichia Coli RNA polymerase. FEBS Letters, 102(1), 51–54. https://doi.org/10.1016/0014-5793(79)80926-6