title: Particle containing uncleaved major head protein (P23) which is maturable into the head of phage T4.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D003090:Coliphages / Q000032:analysis* / Q000378:metabolism; D004267:DNA Viruses / Q000032:analysis / Q000378:metabolism; D004279:DNA, Viral / Q000302:isolation & purification; D003851:Deoxyribonucleases; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli; D008854:Microscopy, Electron; D009154:Mutation; D014170:Transformation, Genetic; D014316:Tritium; D014764:Viral Proteins / Q000032:analysis* / Q000378:metabolism
chemical_list: D002250:Carbon Radioisotopes; D004279:DNA, Viral; D014764:Viral Proteins; D014316:Tritium; D003851:Deoxyribonucleases