title: Plasmid-determined tetracycline resistance in Streptococcus faecalis: tandemly repeated resistance determinants in amplified forms of pAMalpha1 DNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D004261:DNA Replication / Q000187:drug effects; D004262:DNA Restriction Enzymes; D004269:DNA, Bacterial / Q000096:biosynthesis; D004352:Drug Resistance, Microbial; D013293:Enterococcus faecalis / Q000187:drug effects / Q000378:metabolism*; D005111:Extrachromosomal Inheritance; D008854:Microscopy, Electron; D008954:Models, Biological; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D010957:Plasmids; D013752:Tetracycline / Q000494:pharmacology*
chemical_list: D004269:DNA, Bacterial; D004262:DNA Restriction Enzymes; D013752:Tetracycline