title: Viral and non-viral induced fusion of pronase-digested human erythrocyte ghosts.
abstract: Human erythrocyte ghosts but was able to fuse only iso-human erythrocyte ghosts. Iso- and hypo-human erythrocyte ghosts were incubated with the proteolytic enzyme pronase under isotonic (iso-human erythrocyte ghosts) or hypotonic (hypo-human erythrocyte ghosts) conditions. Gel electrophoresis and electron microscope (freeze-etching) studies revealed that most of the erythrocyte membrane polypeptides were hydrolyzed by pronase under hypotonic conditions. Sendai virus readily agglutinated both pronase-digested iso-human erythrocyte ghosts and hypo-human erythrocyte ghosts were fused by the non-viral fusogenic agent glyceromonooleate. Freeze-etching studies revealed that during fusion the membranes of pronase-digested human erythrocyte ghosts are intermixed.
mesh_terms: D004910:Erythrocyte Membrane / Q000648:ultrastructure*; D004912:Erythrocytes / Q000648:ultrastructure*; D005614:Freeze Fracturing; D006801:Humans; D008565:Membrane Proteins / Q000097:blood; D008854:Microscopy, Electron; D009994:Osmolar Concentration; D010222:Parainfluenza Virus 1, Human; D011402:Pronase
chemical_list: D008565:Membrane Proteins; D011402:Pronase