title: lambda PJ4A, a lambda replacement vector carrying amber mutations for cloning of EcoRI fragments.
mesh_terms: D010582:Bacteriophage lambda / Q000235:genetics*; D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes / Q000494:pharmacology; D015246:Deoxyribonuclease EcoRI; D005822:Genetic Vectors; D009154:Mutation
chemical_list: D004262:DNA Restriction Enzymes; D015246:Deoxyribonuclease EcoRI