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Conference publicationsPolyelectrolyte Protein Complex. Polyallylamin Influence on Structure and Functions of Urease"Математика. Компьютер. Образование". Cб. трудов XVI международной конференции. Под общей редакцией Г.Ю. Ризниченко Ижевск: Научно-издательский центр "Регулярная и хаотическая динамика", 2009. Vol. 2. Pp. 145-157. (accepted) Influence of polyelectrolyte polyallylamine (PAH) on structure and catalytic characteristics of urease (Canavalia ensiformis) by methods steady-state kinetics, fluorescence spectroscopy and circular dichroism is studied. It is shown that this polyelectrolyte is strong inhibitor of urease (50 % inhibition of enzyme with concentration PAH of 0,5 mkg/ml at neutral values рН). It is assumed regulatory role specific cation-binding sites on a molecule urease, defining structural dynamics a complex enzyme-polyelectrolyte. |