title: Zonal density gradient electrophoresis of influenza A virus.
abstract: Enzymatic activities associated with influenza A virus purified by sedimentation in sucrose density gradient were removed from the virions by sucrose density gradient electrophoresis. A rapidly migrating electrophoretic fraction contained both structural viral polypeptides and chick embryo allantoic fluid polypeptides.
mesh_terms: D000818:Animals; D002499:Centrifugation, Density Gradient; D002642:Chick Embryo; D004591:Electrophoresis, Polyacrylamide Gel; D006389:Hemagglutinins, Viral / Q000302:isolation & purification; D009980:Influenza A virus / Q000302:isolation & purification*; D009439:Neuraminidase / Q000302:isolation & purification; D012260:Ribonucleases / Q000302:isolation & purification
chemical_list: D006389:Hemagglutinins, Viral; D012260:Ribonucleases; D009439:Neuraminidase