title: Partial characterization of nucleoids and nucleoid-plasmid complexes from Salmonella typhimurium.
abstract: Nucleoids from Salmonella typhimurium strain LT2 consist of supercoiled deoxyribonucleic acid structures that are ribonuclease labile sedimenting at 1,700S. More than 90% of the covalently closed circular deoxyribonucleic acid of a cryptic plasmid harbored by this strain cosediments with the host's 1,700S nucleoids.
mesh_terms: D002467:Cell Nucleus / Q000032:analysis*; D002876:Chromosomes, Bacterial / Q000032:analysis; D004269:DNA, Bacterial / Q000032:analysis*; D004270:DNA, Circular / Q000032:analysis*; D004996:Ethidium / Q000494:pharmacology; D005111:Extrachromosomal Inheritance; D010957:Plasmids; D012260:Ribonucleases / Q000494:pharmacology; D012486:Salmonella typhimurium / Q000032:analysis*
chemical_list: D004269:DNA, Bacterial; D004270:DNA, Circular; D012260:Ribonucleases; D004996:Ethidium