title: Towards a system for the identification and classification of potyviruses. I. Serology and amino acid composition of six distinct viruses.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000956:Antigens, Viral / Q000032:analysis; D005779:Immunodiffusion; D008970:Molecular Weight; D010942:Plant Viruses / Q000032:analysis / Q000145:classification* / Q000276:immunology; D013045:Species Specificity; D014764:Viral Proteins / Q000032:analysis / Q000276:immunology
chemical_list: D000596:Amino Acids; D000956:Antigens, Viral; D014764:Viral Proteins