title: Gene 20 product of bacteriophage T4 its purification and structure.
mesh_terms: D004591:Electrophoresis, Polyacrylamide Gel; D005814:Genes, Viral; D007525:Isoelectric Focusing; D008854:Microscopy, Electron; D008970:Molecular Weight; D014176:Protein Biosynthesis; D013604:T-Phages / Q000235:genetics* / Q000648:ultrastructure; D014764:Viral Proteins / Q000302:isolation & purification*
chemical_list: D014764:Viral Proteins