title: DNA helix stability. I. Differential stabilization by counter cations.
mesh_terms: D000818:Animals; D002118:Calcium; D002413:Cations, Divalent; D002414:Cations, Monovalent; D003090:Coliphages; D004247:DNA; D004279:DNA, Viral; D004355:Drug Stability; D006146:Guanidines; D008094:Lithium; D008297:Male; D008433:Mathematics; D008956:Models, Chemical; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D009994:Osmolar Concentration; D011479:Protamines; D012474:Salmon; D013056:Spectrophotometry, Ultraviolet; D013094:Spermatozoa; D013324:Strontium; D013696:Temperature
chemical_list: D002413:Cations, Divalent; D002414:Cations, Monovalent; D004279:DNA, Viral; D006146:Guanidines; D011479:Protamines; D004247:DNA; D008094:Lithium; D002118:Calcium; D013324:Strontium