A matter of time: Using dynamics and theory to uncover mechanisms of transcriptional bursting

NC Lammers, YJ Kim, J Zhao, HG Garcia - Current opinion in cell biology, 2020 - Elsevier
Eukaryotic transcription generally occurs in bursts of activity lasting minutes to hours;
however, state-of-the-art measurements have revealed that many of the molecular …

[HTML][HTML] Real-time single-cell characterization of the eukaryotic transcription cycle reveals correlations between RNA initiation, elongation, and cleavage

J Liu, D Hansen, E Eck, YJ Kim, M Turner… - PLOS Computational …, 2021 - journals.plos.org
The eukaryotic transcription cycle consists of three main steps: initiation, elongation, and
cleavage of the nascent RNA transcript. Although each of these steps can be regulated as …

Stochastic modeling of the mRNA life process: A generalized master equation

C Shi, X Yang, J Zhang, T Zhou - Biophysical Journal, 2023 - cell.com
The mRNA life cycle is a complex biochemical process, involving transcription initiation,
elongation, termination, splicing, and degradation. Each of these molecular events is …

[HTML][HTML] Regulation of the dynamic RNA Pol II elongation rate in Drosophila embryos

SH Keller, H Deng, B Lim - Cell reports, 2023 - cell.com
An increasing number of studies have shown the key role that RNA polymerase II (RNA Pol
II) elongation plays in gene regulation. We systematically examine how various enhancers …

[HTML][HTML] Statistics of nascent and mature RNA fluctuations in a stochastic model of transcriptional initiation, elongation, pausing, and termination

T Filatova, N Popovic, R Grima - Bulletin of Mathematical Biology, 2021 - Springer
Recent advances in fluorescence microscopy have made it possible to measure the
fluctuations of nascent (actively transcribed) RNA. These closely reflect transcription kinetics …

Deciphering a global source of non-genetic heterogeneity in cancer cells

J Zhang, X Han, L Ma, S Xu, Y Lin - Nucleic Acids Research, 2023 - academic.oup.com
Cell-to-cell variability within a clonal population, also known as non-genetic heterogeneity,
has created significant challenges for intervening with diseases such as cancer. While non …

Mean-field theory accurately captures the variation of copy number distributions across the mRNA life cycle

J Szavits-Nossan, R Grima - Physical Review E, 2022 - APS
We consider a stochastic model where a gene switches between two states, an mRNA
transcript is released in the active state, and subsequently it undergoes an arbitrary number …

Model-based characterization of the equilibrium dynamics of transcription initiation and promoter-proximal pausing in human cells

Y Zhao, L Liu, R Hassett, A Siepel - Nucleic Acids Research, 2023 - academic.oup.com
In metazoans, both transcription initiation and the escape of RNA polymerase (RNAP) from
promoter-proximal pausing are key rate-limiting steps in gene expression. These processes …

Decoding the grammar of transcriptional regulation from RNA polymerase measurements: models and their applications

MZ Ali, S Choubey - Physical Biology, 2019 - iopscience.iop.org
The genomic revolution has indubitably brought about a paradigm shift in the field of
molecular biology, wherein we can sequence, write and re-write genomes. In spite of …

The minimal intrinsic stochasticity of constitutively expressed eukaryotic genes is sub-Poissonian

DE Weidemann, J Holehouse, A Singh, R Grima… - Science …, 2023 - science.org
Gene expression inherently gives rise to stochastic variation (“noise”) in the production of
gene products. Minimizing noise is crucial for ensuring reliable cellular functions. However …