title: Partial purification and characterization of the potato virus Y helper component.
mesh_terms: D002850:Chromatography, Gel; D004586:Electrophoresis; D006358:Hot Temperature; D008274:Magnesium / Q000494:pharmacology; D010942:Plant Viruses; D011402:Pronase / Q000494:pharmacology; D012260:Ribonucleases / Q000494:pharmacology; D014357:Trypsin / Q000494:pharmacology; D014462:Ultrafiltration; D014764:Viral Proteins / Q000302:isolation & purification* / Q000502:physiology
chemical_list: D014764:Viral Proteins; D012260:Ribonucleases; D014357:Trypsin; D011402:Pronase; D008274:Magnesium