title: The size and shape of influenza virus neuraminidase.
mesh_terms: D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D006020:Glycopeptides / Q000032:analysis; D008854:Microscopy, Electron; D008970:Molecular Weight; D009439:Neuraminidase / Q000032:analysis* / Q000302:isolation & purification; D009975:Orthomyxoviridae / Q000201:enzymology*; D014357:Trypsin; D014461:Ultracentrifugation
chemical_list: D006020:Glycopeptides; D009439:Neuraminidase; D014357:Trypsin