TY - GEN AU - Bijlenga,R K AU - Kellenberger,E TI - Particle containing uncleaved major head protein (P23) which is maturable into the head of phage T4 SN - 0028-0836 PY - 1974///0906 KW - Carbon Radioisotopes KW - Centrifugation, Density Gradient KW - Coliphages KW - analysis KW - DNA Viruses KW - DNA, Viral KW - isolation & purification KW - Deoxyribonucleases KW - Electrophoresis, Polyacrylamide Gel KW - Escherichia coli KW - Microscopy, Electron KW - Mutation KW - Transformation, Genetic KW - Tritium KW - Viral Proteins N1 - Publication Type: Journal Article UR - https://doi.org/10.1038/249825a0 ER -