title: Fluorimetric detection of different structures induced by concentration changes of alkaline and alkaline-earth counterions on covalently closed DNA.
mesh_terms: D001464:Barium / Q000494:pharmacology; D002122:Calcium Chloride / Q000494:pharmacology*; D002412:Cations; D004247:DNA / Q000378:metabolism*; D005456:Fluorescent Dyes; D007211:Indoles / Q000378:metabolism*; D008274:Magnesium / Q000494:pharmacology; D009690:Nucleic Acid Conformation / Q000187:drug effects*; D009994:Osmolar Concentration; D010957:Plasmids; D011189:Potassium Chloride / Q000494:pharmacology*; D013050:Spectrometry, Fluorescence
chemical_list: D002412:Cations; D005456:Fluorescent Dyes; D007211:Indoles; D001464:Barium; C007293:DAPI; D011189:Potassium Chloride; D004247:DNA; D008274:Magnesium; D002122:Calcium Chloride