Moscow University Chemistry Bulletin

, Volume 69, Issue 3, pp 125–130 | Cite as

Catalytic characteristics of enzyme-polyelectrolyte complexes based on hexahistidine-containing organophosphorus hydrolase

  • I. V. Lyagin
  • E. N. Efremenko
  • A. V. Kabanov


A number of covalent and non-covalent polyelectrolyte complexes based on enzyme such as hexahistidine-containing organophosphorus hydrolase was developed in this work. Polyanions and polycations were used in the form of block-copolymers with poly(ethylene glycol). To obtain covalent complexes of the enzyme, different coupling agents (glutaric aldehyde, N-ethyl-N′-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) and N-hydroxysulfosuccinimide sodium salt) were tried. The best catalytic efficiency of the action of the covalently bound complex ((2.8 ± 0.3) × 108 M−1 s−1) was obtained for samples with EDC. The modification of the protein surface was undertaken as an approach to its further biomedical application.


hexahistidine-containing organophosphorus hydrolase polyelectrolyte enzyme-polyelectrolyte complex 


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Copyright information

© Allerton Press, Inc. 2014

Authors and Affiliations

  • I. V. Lyagin
    • 1
  • E. N. Efremenko
    • 1
  • A. V. Kabanov
    • 1
  1. 1.Department of ChemistryMoscow State UniversityMoscowRussia

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