[Study of the effect of the microenvironment on magnetic resonance parameters of spin-labeled human serum albumin in a 2-mm ESR range].
Basic values of g-tensor and Azz component of HF tensor of two spin labels and spin probe on HSA and nitroxyl radicals HO-15, HO-34 in the solvents of different polarity were measured by 2 mm band ESR of 2 mm range. Magnetic-resonance parameters of liophylized and water-solved spin-labeled HSA were shown to correspond to the parameters of the solvents of the label HO-15 and HO-34 in ethyl alcohol and water. A conclusion was drawn concerning the identity of microenvironment of the nitroxyl fragment of liophylized HSA and frozen solution of the label HO-15 and HO-34 in ethyl alcohol and solvatation of the nitroxyl fragment of spin-labeled HSA and label HO-15 (HO-34) by water molecules.
Krinichnyĭ
V I
VI
Grinberg
O Ia
OIa
Likhtenshteĭn
G I
GI
Lebedev
Ia S
IaS
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D006801:Humans; D012709:Serum Albumin; D012996:Solutions; D013113:Spin Labels
D005609:Free Radicals; D012709:Serum Albumin; D012996:Solutions; D013113:Spin Labels
Izuchenie vliianiia mikrookruzheniia na magnitno-rezonansnye parametry spin-mechenogo syvorotochnogo al'bumina cheloveka v 2-mm diapazone.