Avian Myeloblastosis Virus Reverse Transcriptase (AMV RT) catalyzes DNA polymerization using template DNA, RNA or RNA:DNA hybrids. It requires a primer (DNA primers are more efficient than RNA primers) as well as Mg(2+) or Mn(2+). The enzyme possesses an intrinsic RNase H activity. Both nonionic detergents and sulfhydryl compounds stabilize the enzyme activity in vitro.