title: The beta subunit of the DNA polymerase of avian sarcoma virus strain B77 is a phosphoprotein.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000201:enzymology; D046508:Culture Techniques; D004372:Ducks; D010455:Peptides / Q000032:analysis; D010750:Phosphoproteins / Q000032:analysis; D012194:RNA-Directed DNA Polymerase / Q000032:analysis*; D014764:Viral Proteins / Q000032:analysis
chemical_list: D010455:Peptides; D010750:Phosphoproteins; D014764:Viral Proteins; D012194:RNA-Directed DNA Polymerase