Kotel'nikova R A, Tat'ianenko L V, Kulikov A V, Kotel'nikov A I, Mel'nikov A V
Biofizika. 1979 Sep-Oct;24(5):839-42.
ESR spectra of nitroxyl derivative labelling with parachlormercury benzoate bound with SH-groups of Ca, Mg-dependent ATPase in the presence of Mn2+ ions are studied. It has been concluded from the saturation curves of ESR spectra that Mn2+ is localized at the distance approximately 40 A from the SH-group of the enzyme active centre. Platinum compound (K2PtCl4) changes the spectrum of ESR 1 due to the displacement of the label from the enzyme SH-groups and disintegration of the sarcoplasmic reticulum structure. Palladium compound (Pd(NH3)4Cl2) produced no effect on the ESR 1 spectrum.
研究了在Mn2+离子存在下，对氯汞苯甲酸与Ca、Mg依赖的ATP酶的SH基团结合的硝酰基衍生物标记的ESR光谱。从ESR光谱的饱和曲线得出结论，Mn2+位于距酶活性中心SH基团约40 Å的距离处。铂化合物（K2PtCl4）由于标记从酶SH基团的位移和肌浆网结构的解体而改变了ESR 1光谱。钯化合物（Pd(NH3)4Cl2）对ESR 1光谱没有影响。
