IMPACT OF PROLONGED GLYCATION PRE-TREATMENT ON THE ELECTRON TRANSFER KINETICS OF CYTOCHROME C
DOI:
https://doi.org/10.52340/jecm.2024.02.02Keywords:
Cytochrome C, Glycation, D-glucose, cyclic voltammetry, electron transferAbstract
The effect of long term (up to 25 days) glycation process by D-glucose on the electron transfer properties of Cyt C under artificial conditions, using modified gold electrode, as a redox partner, has been studied. The redox kinetics of Cyt C, in the 0.1 M buffer solution containing 4 mg/mL Cyt C and 200 G/L D-glucose (T=25 0C), by the glycation time more than three weeks was directly measured using the method of cyclic voltammetry. Systems voltamperic response has shown, that redox activity of glycated Cyt C is preserved upon the glycation time, at least, during the incubation period up to 25 days.
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Scott, R. A., Mauk, A. G. Cytochrome C. A Multidisciplinary Approach; University Science Books: Sausalito, 1996.
Fedurco, M. Redox reactions of heme-containing metalloproteins: dynamic effects of self-assembled monolayers on thermodynamics and kinetics of cytochrome c electron-transfer reactions. Coordination Chemistry Reviews, 2000, 209(1), 263–331. doi:10.1016/s0010-8545(00)00292
Sharma, G. S., Warepam, M., Bhattacharya, R., & Singh, L. R. Covalent Modification by Glyoxals Converts Cytochrome C Into its Apoptotically Competent State. Scientific Reports, 2019, 9(1). doi:10.1038/s41598-019-41282-2
Cussimanio, B.L., Booth, A.A., Todd, P., Hudson B.G., Khalifah, R.G. Unusual susceptibility of heme proteins to damage by glucose during non-enzymatic glycation Biophysical Chemistry 2003, 105, 743–755.
Hildick-Smith, G.J., Downey, M.C., Gretebeck, L.M., Gersten, R.A., Sandwick, R.K. Ribose 5-Phosphate Glycation Reduces Cytochrome C Respiratory Activity and Membrane Affinity. Biochemistry 2011, 50, 11047–11057.
Khoshtariya, D.E., Dolidze, T.D., Seyfert, S., Sarauli, D., Lee G. & van Eldik, R. Kinetic, thermodynamic and mechanistic patterns for free (unbound) cytochrome c at Au/SAM junction. Impact of electronic coupling, hydrostatic pressure, and stabilizing/denaturing additives. Chem. Eur. J., 2006, 12 (27), 7041-7056.
Dolidze, T.D., Khoshtariya, D.E., Waldeck D.H., Macyk J & van Eldik R. Positive activation volume for a cytochrome c electrode process: Evidence for a "protein friction" mechanism from the high-pressure studies. J. Phys. Chem. B, 2003, 107, 7172-7179.
Nichilson R.S., Theory and Application of Cyclic Voltammetry for Measurement of Electrode Reaction Kinetics, Anal. Chem. 1965, 37,1351-1355.