title: Early events in the in vitro packaging of bacteriophage lambda DNA.
mesh_terms: D000255:Adenosine Triphosphate / Q000494:pharmacology; D002499:Centrifugation, Density Gradient; D003090:Coliphages / Q000378:metabolism*; D004279:DNA, Viral / Q000378:metabolism*; D007700:Kinetics; D008274:Magnesium / Q000494:pharmacology; D013095:Spermidine / Q000494:pharmacology; D013696:Temperature; D010948:Viral Plaque Assay; D014764:Viral Proteins / Q000378:metabolism*
chemical_list: D004279:DNA, Viral; D014764:Viral Proteins; D000255:Adenosine Triphosphate; D008274:Magnesium; D013095:Spermidine