Functional roles of slow enzyme conformational changes in network dynamics

Z Wu, J Xing - Biophysical journal, 2012 - cell.com
Extensive studies from different fields reveal that many macromolecules, especially
enzymes, show slow transitions among different conformations. This phenomenon is named …

Overshoot in biological systems modelled by Markov chains: a non‐equilibrium dynamic phenomenon

C Jia, M Qian, D Jiang - IET systems biology, 2014 - Wiley Online Library
A number of biological systems can be modelled by Markov chains. Recently, there has
been an increasing concern about when biological systems modelled by Markov chains will …

Governing principles of transcriptional logic out of equilibrium

S Dixit, TC Middelkoop, S Choubey - Biophysical Journal, 2024 - cell.com
To survive, adapt, and develop, cells respond to external and internal stimuli by tightly
regulating transcription. Transcriptional regulation involves the combinatorial binding of a …

Steady-state joint distribution for first-order stochastic reaction kinetics

Y Li, DQ Jiang, C Jia - Physical Review E, 2021 - APS
While the analytical solution for the marginal distribution of a stochastic chemical reaction
network has been extensively studied, its joint distribution, ie, the solution of a high …

Molecular and cellular factors control signal transduction via switchable allosteric modulator proteins (SAMPs)

H Babel, IB Bischofs - BMC Systems Biology, 2016 - Springer
Abstract Background Rap proteins from Bacilli directly target response regulators of bacterial
two-component systems and modulate their activity. Their effects are controlled by binding of …

The nonequilibrium mechanism of noise-enhanced drug synergy in HIV latency reactivation

X Guo, T Tang, M Duan, L Zhang, H Ge - Iscience, 2022 - cell.com
Noise-modulating chemicals can synergize with transcriptional activators in reactivating
latent HIV to eliminate latent HIV reservoirs. To understand the underlying biomolecular …

A second perspective on the Amann–Schmiedl–Seifert criterion for non-equilibrium in a three-state system

C Jia, Y Chen - Journal of Physics A: Mathematical and …, 2015 - iopscience.iop.org
In the work of Amann, Schmiedl and Seifert (2010 J. Chem. Phys. 132 041102), the authors
derived a sufficient criterion to identify a non-equilibrium steady state (NESS) in a three-state …

An allosteric model of the inositol trisphosphate receptor with nonequilibrium binding

C Jia, D Jiang, M Qian - Physical Biology, 2014 - iopscience.iop.org
The inositol trisphosphate receptor (IPR) is a crucial ion channel that regulates the Ca 2+
influx from the endoplasmic reticulum (ER) to the cytoplasm. A thorough study of the IPR …

Cyclic conformational modification of an enzyme: serial engagement, energy relay, hysteretic enzyme, and Fischer's hypothesis

H Qian - The Journal of Physical Chemistry B, 2010 - ACS Publications
Reversible chemical modification of enzymes is one of the most important mechanisms in
cellular signaling. We generalize this concept to include cyclic modification of enzyme …

Model for FRET sensors of allosteric switchable modulator proteins for the determination of allosteric parameters

H Babel - bioRxiv, 2022 - biorxiv.org
FRET-sensors are a well-established method to investigate protein-protein interactions. To
determine how FRET-sensor can be employed for the study of switchable allosteric …