title: DNA sequences in influenza virions.
abstract: During the propagation of A (H3N2) influenza virus in chick embryos, incorporation of 3H-thymidine into virions takes place, whereas no such incorporation occurs with Newcastle disease virus. Incorporation of 3H-thymidine is a result of DNA synthesis. This virion-associated DNA is present in cores obtained after treatment of virions with bromelain.
mesh_terms: D000818:Animals; D001483:Base Sequence; D001963:Bromelains / Q000494:pharmacology; D002642:Chick Embryo; D046508:Culture Techniques; D004279:DNA, Viral / Q000096:biosynthesis*; D009980:Influenza A virus / Q000187:drug effects / Q000378:metabolism*; D009522:Newcastle disease virus / Q000378:metabolism; D013936:Thymidine / Q000378:metabolism; D014771:Virion / Q000187:drug effects / Q000378:metabolism*
chemical_list: D004279:DNA, Viral; D001963:Bromelains; D013936:Thymidine