title: Use of zwitterionic detergent for the preparation of an influenza virus vaccine. 1: Preparation and characterization of disrupted virions.
abstract: The zwitterionic, Empigen BB an alkylbetaine based on a C12-C14 alcohol was shown to disrupt influenza A and B viruses in such a way as to retain the biological activity of the surface haemagglutinin (HA) and neuraminidase (NA) antigens. The optimal conditions required to obtain the maximum recovery of HA and NA activity from purified influenza X47 (H3N2) virus concentrate after treatment with Empigen, and the nature and the morphological appearance of the Empigen-treated preparations both before and following a sucrose density gradient purification step, are described. Matrix (M) protein was readily removed during purification, but nucleoprotein (NP) could not be separated from the surface protein activity.
mesh_terms: D002499:Centrifugation, Density Gradient; D003902:Detergents / Q000494:pharmacology*; D006389:Hemagglutinins, Viral / Q000302:isolation & purification; D007252:Influenza Vaccines; D008854:Microscopy, Electron; D009439:Neuraminidase / Q000302:isolation & purification; D009930:Organic Chemicals; D009975:Orthomyxoviridae / Q000032:analysis / Q000187:drug effects* / Q000648:ultrastructure; D013501:Surface-Active Agents / Q000494:pharmacology*; D014764:Viral Proteins / Q000302:isolation & purification; D014771:Virion / Q000032:analysis / Q000187:drug effects*
chemical_list: D003902:Detergents; D006389:Hemagglutinins, Viral; D007252:Influenza Vaccines; D009930:Organic Chemicals; D013501:Surface-Active Agents; D014764:Viral Proteins; D009439:Neuraminidase; C041772:empigen BB