title: The polypeptide composition of avian infectious bronchitis virus.
abstract: Avian infectious bronchitis virus grown in ovo was purified by differential centrifugation and isopycnic sedimentation in density gradients. The purified virus was analysed by SDS polyacrylamide gel electrophoresis and found to comprise up to sixteen polypeptides, four of which were glycopeptides. Bromelain treatment of the particles removed three polypeptides and two glycopeptides.
mesh_terms: D001963:Bromelains; D003332:Coronaviridae / Q000032:analysis*; D046508:Culture Techniques; D006020:Glycopeptides / Q000032:analysis; D001351:Infectious bronchitis virus / Q000032:analysis* / Q000254:growth & development / Q000302:isolation & purification; D008970:Molecular Weight; D010455:Peptides / Q000032:analysis*; D012367:RNA, Viral / Q000032:analysis; D014764:Viral Proteins / Q000032:analysis*
chemical_list: D006020:Glycopeptides; D010455:Peptides; D012367:RNA, Viral; D014764:Viral Proteins; D001963:Bromelains