Eukaryotic DNA primase abortive synthesis of oligoadenylates

Abstract
Calf thymus DNA polymerase α-primase, human placenta DNA polymerase α-primase and human placenta DNA primase synthesized oligoriboadenylates of a preferred length of 2–10 nucleotides and multimeric oligoribonucleotides of a modal length of about 10 monomers on a poly(dT) template. The dimer and trimer were the prevalent products of the polymerization reaction. However, only the oligonucleotides from heptamers to decamers were elongated efficiently by DNA polymerase α.