Paramagnetic Effects on Nuclear Relaxation in Enzyme-Bound Co(II)–Adenine Nucleotide Complexes: Relative Contributions of Dipolar and Scalar Interactions

31P NMR measurements on CoADP bound to creatine kinase designed to estimate the relative contribution of scalar and dipolar interactions to31P spin relaxation rates show that these rates are primarily due to distance-dependent dipolar interactions and that the contribution of the scalar interaction...

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Veröffentlicht in:	Journal of magnetic resonance (1997) 1999-01, Vol.136 (1), p.130-133
Hauptverfasser:	Ray, Bruce D., Jarori, Gotam K., Nageswara Rao, B.D.
Format:	Artikel
Sprache:	eng
Schlagworte:	adenine nucleotides Adenine Nucleotides - chemistry Adenosine Diphosphate - analogs & derivatives Adenosine Diphosphate - chemistry Anisotropy ATP-utilizing enzymes Binding Sites Cations - analysis Creatine Kinase - chemistry enzyme–substrate interactions Magnetic Resonance Spectroscopy Magnetics Models, Structural Molecular Structure paramagnetic cations Phosphorus Isotopes Spin Labels spin relaxation
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