Journal of Physical Chemistry Letters, volume 12, issue 35, pages 8664-8671
Insights into the Early-Time Excited-State Dynamics of Structurally Inhomogeneous Rhodopsin KR2.
Publication type: Journal Article
Publication date: 2021-09-02
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 5.7
ISSN: 19487185
Physical and Theoretical Chemistry
General Materials Science
Abstract
The light-driven sodium-pump rhodopsin KR2 exhibits ultrafast photoisomerization dynamics of its all-trans protonated Schiff-base retinal (PSBR). However, the excited-state decay of KR2 also shows slow picosecond time constants, which are attributed to nonreactive states. The mechanism that produces long-lived states is unclear. Here, by using molecular dynamics simulations and large-scale XMCQDPT2-based QM/MM modeling, we explore the origin of reactive and nonreactive states in KR2. By calculating the S0-S1 vibronic band shapes, we gain insight into the early-time excited-state dynamics of PSBR and show that the protein environment can significantly alter vibrational modes that are active upon photoexcitation, thus facilitating photoisomerization from all-trans to 13-cis PSBR. Importantly, we reveal structural heterogeneity of the retinal-binding pocket of KR2, characterized by three distinct conformations, and conclude that the formation of a strong hydrogen bond between the retinal Schiff base and its counterion is essential for the ultrafast reaction dynamics.
Citations by journals
1
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Journal of the American Chemical Society
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Journal of the American Chemical Society
1 publication, 10%
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Moscow University Chemistry Bulletin
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Moscow University Chemistry Bulletin
1 publication, 10%
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1 publication, 10%
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Journal of Chemical Theory and Computation
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Journal of Chemical Theory and Computation
1 publication, 10%
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Journal of Physical Chemistry Letters
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Journal of Physical Chemistry Letters
1 publication, 10%
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International Journal of Molecular Sciences
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International Journal of Molecular Sciences
1 publication, 10%
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Biochemistry (Moscow)
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Biochemistry (Moscow)
1 publication, 10%
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Molecules
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Molecules
1 publication, 10%
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Journal of Chemical Information and Modeling
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Journal of Chemical Information and Modeling
1 publication, 10%
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1
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Citations by publishers
1
2
3
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5
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American Chemical Society (ACS)
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American Chemical Society (ACS)
5 publications, 50%
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Pleiades Publishing
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Pleiades Publishing
2 publications, 20%
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 20%
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1
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3
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5
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Kusochek P. A., Scherbinin A. V., Bochenkova A. V. Insights into the Early-Time Excited-State Dynamics of Structurally Inhomogeneous Rhodopsin KR2. // Journal of Physical Chemistry Letters. 2021. Vol. 12. No. 35. pp. 8664-8671.
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Kusochek P. A., Scherbinin A. V., Bochenkova A. V. Insights into the Early-Time Excited-State Dynamics of Structurally Inhomogeneous Rhodopsin KR2. // Journal of Physical Chemistry Letters. 2021. Vol. 12. No. 35. pp. 8664-8671.
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TY - JOUR
DO - 10.1021/acs.jpclett.1c02312
UR - https://doi.org/10.1021%2Facs.jpclett.1c02312
TI - Insights into the Early-Time Excited-State Dynamics of Structurally Inhomogeneous Rhodopsin KR2.
T2 - Journal of Physical Chemistry Letters
AU - Kusochek, Pavel A
AU - Bochenkova, Anastasia V.
AU - Scherbinin, Andrei V
PY - 2021
DA - 2021/09/02 00:00:00
PB - American Chemical Society (ACS)
SP - 8664-8671
IS - 35
VL - 12
SN - 1948-7185
ER -
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@article{2021_Kusochek,
author = {Pavel A Kusochek and Anastasia V. Bochenkova and Andrei V Scherbinin},
title = {Insights into the Early-Time Excited-State Dynamics of Structurally Inhomogeneous Rhodopsin KR2.},
journal = {Journal of Physical Chemistry Letters},
year = {2021},
volume = {12},
publisher = {American Chemical Society (ACS)},
month = {sep},
url = {https://doi.org/10.1021%2Facs.jpclett.1c02312},
number = {35},
pages = {8664--8671},
doi = {10.1021/acs.jpclett.1c02312}
}
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Kusochek, Pavel A., et al. “Insights into the Early-Time Excited-State Dynamics of Structurally Inhomogeneous Rhodopsin KR2..” Journal of Physical Chemistry Letters, vol. 12, no. 35, Sep. 2021, pp. 8664-8671. https://doi.org/10.1021%2Facs.jpclett.1c02312.
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