Visscher J, van der Woerd R, Bakker C G, Schwartz A W
Laboratory for Exobiology, University of Nijmegen, The Netherlands.
Orig Life Evol Biosph. 1989;19(1):3-6. doi: 10.1007/BF01808283.
Evidence is presented that a poly(U) template selectively favors the oligomerization of the activated, 3'-5' pyrophosphate-linked dimer pdAppdAp, in comparison with the 3'-3' and 5'-5' linked dimers. In the absence of poly(U), the 5'-5' linked dimer is the most reactive, and chains are formed which are more than 60 monomer units in length.