Abstract
The spectra of surface-enhanced Raman scattering of D-amino acid oxidase from pig kidney were recorded and analyzed using silver nanoparticles; characteristic spectral parameters of changes in the conformation of the flavinadenine dinucleotide cofactor during activation of the enzyme by D-amino acids were revealed. It was found that the time during which changes in the conformation of the flavinadenine dinucleotide were recorded depended on the substrate specificity of the enzyme: in the presence of D-alanine, this took several seconds, and in the presence of D-serine, minutes.
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Funding
The research was carried out with the financial support of the Russian Science Foundation, project no. 23-74-00006 for Zh. V. Bochkova and N. A. Brazhe, as well as the Interdisciplinary Scientific and Educational School of Moscow State University Molecular technologies of living systems and synthetic biology.
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Abbreviations: DAAO, D-amino acid oxidase; FAD, flavin adenine dinucleotide; RS, Raman spectroscopy; SERS, surface-enhanced Raman scattering.
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Bochkova, J.V., Liu, W., Brazhe, N.A. et al. A Raman Spectroscopic Study of the Conformation of Flavin Adenine Dinucleotide, a CoEnzyme of D-Amino Acid Oxidase. BIOPHYSICS 68, 719–724 (2023). https://doi.org/10.1134/S0006350923050068
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DOI: https://doi.org/10.1134/S0006350923050068