The energy cost and optimal design for synchronization of coupled molecular oscillators

Nature Physics
Dongliang ZhangYuhai Tu

Abstract

A model of coupled molecular biochemical oscillators is proposed to study nonequilibrium thermodynamics of synchronization. We find that synchronization of nonequilibrium oscillators costs addition energy to drive the exchange reaction (chemical interaction) between individual oscillators. By solving the steady state of the many-body system analytically, we show that the system goes through a nonequilibrium phase transition driven by energy dissipation, and the critical energy dissipation depends on both the frequency and strength of the exchange reaction. Moreover, our study reveals the optimal design for achieving maximum synchronization with a fixed energy budget. We apply our general theory to the Kai system in Cyanobacteria circadian clock and predict a relationship between the KaiC ATPase activity and synchronization of the KaiC hexamers. The theoretical framework can be extended to study thermodynamics of collective behaviors in other extended nonequilibrium active systems.

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Citations

Feb 6, 2020·Proceedings of the National Academy of Sciences of the United States of America·Samuel J Bryant, Benjamin B Machta
Jul 28, 2020·Frontiers in Genetics·Quan LiuJianqiang Sun
Oct 21, 2020·Physical Review. E·Shubhashis Rana, Andre C Barato
Jan 17, 2021·Nature Communications·Daniel S SearaMichael P Murrell
Apr 10, 2021·The Journal of Chemical Physics·Yonghyun Song, Changbong Hyeon
May 30, 2021·Nature Communications·Zhiming HuJiu-An Lv
Jun 3, 2021·Nature Communications·Yuanzhao Zhang, Steven H Strogatz
Jun 19, 2021·Proceedings of the National Academy of Sciences of the United States of America·Xingbo YangPeter J Foster
Oct 6, 2021·The Journal of Physical Chemistry. B·Agnish Kumar BeheraSuriyanarayanan Vaikuntanathan

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