Structural Chemistry, volume 30, issue 2, pages 481-488

Effect of solvation water shells on enzyme active sites in zinc-dependent hydrolases

Publication typeJournal Article
Publication date2018-10-20
Quartile SCImago
Q3
Quartile WOS
Q3
Impact factor1.7
ISSN10400400, 15729001
Physical and Theoretical Chemistry
Condensed Matter Physics
Abstract
In this work, we focus on some structural aspects of enzyme catalysis by modeling effects of the electrostatic potential created by the solvation water shells on properties of enzyme-substrate (ES) complexes. We simulate structure and dynamics of shells of explicit water molecules around two zinc-dependent hydrolases, matrix metalloproteinase-2 and metallo-β-lactamase, using classical force field parameters. Geometry configurations of the ES complexes for both systems are taken from the results of quantum mechanics/molecular mechanics (QM/MM) calculations. Evaluation of the electrostatic potentials from water molecules acting on selected points in the enzyme active sites shows that the shape and the size of solvent shells are important when simulating properties of reacting species inside a protein. We show that a practical way to construct the water shells around the protein is to include all external waters molecules located within the sphere centered at the center of mass of the ES complex or select a water layer around the protein of a constant thickness. In these cases, the computed electrostatic potentials on the selected points in the active site show a reasonable convergence with respect to the size of the solvation shell. We show that the analysis of the fluctuating electrostatic potentials is helpful in selecting the average structures of ES complexes, from which the reaction energy profiles should be computed.

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Kapusta D. P. et al. Effect of solvation water shells on enzyme active sites in zinc-dependent hydrolases // Structural Chemistry. 2018. Vol. 30. No. 2. pp. 481-488.
GOST all authors (up to 50) Copy
Kapusta D. P., Firsov D. A., Khrenova M. G., Grigorenko B. L., Nemukhin A. Effect of solvation water shells on enzyme active sites in zinc-dependent hydrolases // Structural Chemistry. 2018. Vol. 30. No. 2. pp. 481-488.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1007/s11224-018-1206-1
UR - https://doi.org/10.1007%2Fs11224-018-1206-1
TI - Effect of solvation water shells on enzyme active sites in zinc-dependent hydrolases
T2 - Structural Chemistry
AU - Kapusta, Dmitry P
AU - Firsov, Denis A
AU - Khrenova, Maria G
AU - Grigorenko, Bella L
AU - Nemukhin, Alexander
PY - 2018
DA - 2018/10/20 00:00:00
PB - Springer Nature
SP - 481-488
IS - 2
VL - 30
SN - 1040-0400
SN - 1572-9001
ER -
BibTex |
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BibTex Copy
@article{2018_Kapusta,
author = {Dmitry P Kapusta and Denis A Firsov and Maria G Khrenova and Bella L Grigorenko and Alexander Nemukhin},
title = {Effect of solvation water shells on enzyme active sites in zinc-dependent hydrolases},
journal = {Structural Chemistry},
year = {2018},
volume = {30},
publisher = {Springer Nature},
month = {oct},
url = {https://doi.org/10.1007%2Fs11224-018-1206-1},
number = {2},
pages = {481--488},
doi = {10.1007/s11224-018-1206-1}
}
MLA
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MLA Copy
Kapusta, Dmitry P., et al. “Effect of solvation water shells on enzyme active sites in zinc-dependent hydrolases.” Structural Chemistry, vol. 30, no. 2, Oct. 2018, pp. 481-488. https://doi.org/10.1007%2Fs11224-018-1206-1.
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