[Complex formation between polyuridylic acid and adenosine using spin-labeling].
2 poly(u) . 1 adenosine complex formation was studied by spin-technique in the temperature range from 7 to 25 degrees C. It is shown that adenosine binding induces the conformational transition of poly(u) structure from flexible coil into rigid helix. The contribution of hydrogen bonding and stacking of adenosine to the total change of enthalpy and entropy upon complex formation was estimated.
D000241:Adenosine; D004578:Electron Spin Resonance Spectroscopy; D006860:Hydrogen Bonding; D009690:Nucleic Acid Conformation; D011072:Poly U; D013113:Spin Labels; D013816:Thermodynamics
D013113:Spin Labels; D011072:Poly U; D000241:Adenosine
Issledovanie kompleksoobrazovaniia mezhdu poliuridilovoĭ kislotoĭ i adenozinom metodom spinovykh metok.