Enhancers: a focus on synthetic biology and correlated gene expression

CH Bohrer, NA Fursova, DR Larson - ACS Synthetic Biology, 2024 - ACS Publications
Enhancers are central for the regulation of metazoan transcription but have proven difficult to
study, primarily due to a myriad of interdependent variables shaping their activity …

DNA supercoiling in bacteria: state of play and challenges from a viewpoint of physics based modeling

I Junier, E Ghobadpour, O Espeli… - Frontiers in …, 2023 - frontiersin.org
DNA supercoiling is central to many fundamental processes of living organisms. Its average
level along the chromosome and over time reflects the dynamic equilibrium of opposite …

Nucleosomes play a dual role in regulating transcription dynamics

S Brahmachari, S Tripathi, JN Onuchic… - Proceedings of the …, 2024 - pnas.org
Transcription has a mechanical component, as the translocation of the transcription
machinery or RNA polymerase (RNAP) on DNA or chromatin is dynamically coupled to the …

Differential roles of positive and negative supercoiling in organizing the E. coli genome

Z Fu, MS Guo, W Zhou, J Xiao - Nucleic acids research, 2024 - academic.oup.com
This study aims to explore whether and how positive and negative supercoiling contribute to
the three-dimensional (3D) organization of the bacterial genome. We used recently …

Variable DNA topology is an epigenetic generator of physiological heterogeneity in bacterial populations

CJ Dorman - Molecular Microbiology, 2023 - Wiley Online Library
Transcription is a noisy and stochastic process that produces sibling‐to‐sibling variations in
physiology across a population of genetically identical cells. This pattern of diversity reflects …

Regulation of chromatin transcription dynamics by DNA supercoiling

S Brahmachari, S Tripathi, JN Onuchic, H Levine - bioRxiv, 2023 - biorxiv.org
Transcription has a mechanical component, as the translocation of the transcription
machinery or RNA polymerase (RNAP) on DNA or chromatin is dynamically coupled to the …

Collective polymerase dynamics emerge from DNA supercoiling during transcription

SA Sevier, S Hormoz - Biophysical Journal, 2022 - cell.com
All biological processes ultimately come from physical interactions. The mechanical
properties of DNA play a critical role in transcription. RNA polymerase can over or under …

spotter: a single-nucleotide resolution stochastic simulation model of supercoiling-mediated transcription and translation in prokaryotes

WC Hacker, AH Elcock - Nucleic acids research, 2023 - academic.oup.com
Stochastic simulation models have played an important role in efforts to understand the
mechanistic basis of prokaryotic transcription and translation. Despite the fundamental …

Women's contribution in understanding how topoisomerases, supercoiling, and transcription control genome organization

L Martin, MV Neguembor, MP Cosma - Frontiers in Molecular …, 2023 - frontiersin.org
One of the biggest paradoxes in biology is that human genome is roughly 2 m long, while
the nucleus containing it is almost one million times smaller. To fit into the nucleus, DNA …

Gene syntax defines supercoiling-mediated transcriptional feedback

CP Johnstone, KS Love, SR Kabaria, RD Jones… - bioRxiv, 2025 - biorxiv.org
Gene syntax—the order and arrangement of genes and their regulatory elements—shapes
the dynamic coordination of both natural and synthetic gene circuits. Transcription at one …