Equilibrium of conformers in solution: spin-labelled angiotensin.
The number of structural parameters were determined for spin-labelled angiotensin in aqueous solution with the use of fluorescence spectroscopy and 1H NMR relaxation induced by the spin label. At the same time all measured parameters were estimated theoretically by means of energy calculations and Monte-Carlo techniques. The matching procedure for experimental and computational data allows one to suggest a dynamic equilibrium between conformers of the molecule in aqueous solution and to estimate the values of their weights.
D000804:Angiotensin II; D003497:Cyclic N-Oxides; D005609:Free Radicals; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D012996:Solutions; D013113:Spin Labels; D013816:Thermodynamics
D003497:Cyclic N-Oxides; D005609:Free Radicals; D012996:Solutions; D013113:Spin Labels; D000804:Angiotensin II