title: Protection of parental T4 DNA from a restriction exonuclease by the product of gene 2.
mesh_terms: D003090:Coliphages / Q000235:genetics*; D004279:DNA, Viral / Q000378:metabolism; D005092:Exonucleases / Q000378:metabolism; D005814:Genes, Viral; D009154:Mutation; D010641:Phenotype; D014176:Protein Biosynthesis
chemical_list: D004279:DNA, Viral; D005092:Exonucleases