Article ID Journal Published Year Pages File Type
1237917 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2007 5 Pages PDF
Abstract

The noncovalent complexes of cytochrome c and ginsenoside were studied by electrospray ionization mass spectrometry (ESI-MS). Ginsenoside Rb2 and Re were bound to cytochrome c to form several complexes with different stoichiometric relation. The 1:1 and 1:2 complexes of cytochrome c to ginsenoside were considered and the dissociation constants were obtained according to the intensities of cytochrome c and complexes when the concentrations of cytochrome c and ginsenoside have been known. Competition experiment was performed to validate the result. The KD values obtained with different reactive systems were consistent with each other.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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