mRNA translation from a unidirectional traffic perspective

BS TV, R Sharma - Physica A: Statistical Mechanics and its Applications, 2024 - Elsevier
Abstract mRNA translation is a crucial process that leads to protein synthesis in living cells.
Therefore, it is a process that needs to work optimally for a cell to stay healthy and alive. With …

Mechanistic modeling of in vitro transcription incorporating effects of magnesium pyrophosphate crystallization

NM Stover, K Ganko, RD Braatz - Biotechnology and …, 2024 - Wiley Online Library
The in vitro transcription (IVT) reaction used in the production of messenger RNA vaccines
and therapies remains poorly quantitatively understood. Mechanistic modeling of IVT could …

Novel mRNA-specific effects of ribosome drop-off on translation rate and polysome profile

P Bonnin, N Kern, NT Young, I Stansfield… - PLoS computational …, 2017 - journals.plos.org
The well established phenomenon of ribosome drop-off plays crucial roles in translational
accuracy and nutrient starvation responses during protein translation. When cells are under …

RNA polymerase backtracking results in the accumulation of fission yeast condensin at active genes

J Rivosecchi, D Jost, L Vachez… - Life Science …, 2021 - life-science-alliance.org
The mechanisms leading to the accumulation of the SMC complexes condensins around
specific transcription units remain unclear. Observations made in bacteria suggested that …

Crowding and pausing strongly affect dynamics of kinesin-1 motors along microtubules

M Rank, E Frey - Biophysical journal, 2018 - cell.com
Molecular motors of the kinesin-1 family move in a directed and processive fashion along
microtubules. It is generally accepted that steric hindrance of motors leads to crowding …

A mechanistic model for cooperative behavior of co-transcribing RNA polymerases

T Heberling, L Davis, J Gedeon… - PLOS Computational …, 2016 - journals.plos.org
In fast-transcribing prokaryotic genes, such as an rrn gene in Escherichia coli, many RNA
polymerases (RNAPs) transcribe the DNA simultaneously. Active elongation of RNAPs is …

Two-species totally asymmetric simple exclusion process model: From a simple description to intermittency and traveling traffic jams

P Bonnin, I Stansfield, MC Romano, N Kern - Physical Review E, 2022 - APS
We extend the paradigmatic and versatile totally asymmetric simple exclusion process
(TASEP) for stochastic 1D transport to allow for two different particle species, each having …

Probing mechanisms of transcription elongation through cell-to-cell variability of RNA polymerase

MZ Ali, S Choubey, D Das, RC Brewster - Biophysical Journal, 2020 - cell.com
The process of transcription initiation and elongation are primary points of control in the
regulation of gene expression. Although biochemical studies have uncovered the …

First-passage processes on a filamentous track in a dense traffic: optimizing diffusive search for a target in crowding conditions

S Ghosh, B Mishra, AB Kolomeisky… - Journal of Statistical …, 2018 - iopscience.iop.org
Several important biological processes are initiated by the binding of a protein to a specific
site on the DNA. The strategy adopted by a protein, called transcription factor (TF), for …

Current-density relation in the exclusion process with dynamic obstacles

J Szavits-Nossan, B Waclaw - Physical Review E, 2020 - APS
We investigate the totally asymmetric simple exclusion process (TASEP) in the presence of
obstacles that dynamically bind and unbind from the lattice. The model is motivated by …