title: Reverse transcriptase and RNase H: present in a murine virus and in both subunits of an avian virus.
mesh_terms: D001354:Avian Leukosis Virus / Q000201:enzymology*; D009189:Avian Myeloblastosis Virus / Q000201:enzymology*; D005622:Friend murine leukemia virus / Q000201:enzymology*; D008970:Molecular Weight; D011487:Protein Conformation; D012194:RNA-Directed DNA Polymerase / Q000032:analysis / Q000302:isolation & purification* / Q000378:metabolism; D012260:Ribonucleases / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D012194:RNA-Directed DNA Polymerase; D012260:Ribonucleases