title: Biological activity of a partially purified inhibitor of vaccinia virus hemagglutinin.
abstract: An inhibitor acting against vaccinia virus hemagglutinin, and producing a hemagglutinin-negative virus, was separated from tumorous ascitic plasma. The finding that the partially purified inhibitor was biologically active strengthens the evidence for a specific role of the inhibitor in altering the virus.
mesh_terms: D000645:Ammonium Sulfate; D000818:Animals; D002286:Carcinoma, Ehrlich Tumor; D002478:Cells, Cultured; D002499:Centrifugation, Density Gradient; D003956:Dialysis; D004591:Electrophoresis, Polyacrylamide Gel; D000882:Haplorhini; D006382:Hemadsorption; D006387:Hemagglutination, Viral / Q000187:drug effects*; D006389:Hemagglutinins, Viral; D006801:Humans; D007668:Kidney; D007739:L Cells; D008251:Macaca; D008970:Molecular Weight; D009363:Neoplasm Proteins / Q000032:analysis; D013395:Sucrose; D014616:Vaccinia virus / Q000276:immunology*
chemical_list: D006389:Hemagglutinins, Viral; D009363:Neoplasm Proteins; D013395:Sucrose; D000645:Ammonium Sulfate