The roles of nucleoid-associated proteins and topoisomerases in chromosome structure, strand segregation, and the generation of phenotypic heterogeneity in …

V Norris, C Kayser, G Muskhelishvili… - FEMS Microbiology …, 2023 - academic.oup.com
How to adapt to a changing environment is a fundamental, recurrent problem confronting
cells. One solution is for cells to organize their constituents into a limited number of spatially …

IHF and Fis as Escherichia coli Cell Cycle Regulators: Activation of the Replication Origin oriC and the Regulatory Cycle of the DnaA Initiator

K Kasho, S Ozaki, T Katayama - International journal of molecular …, 2023 - mdpi.com
This review summarizes current knowledge about the mechanisms of timely binding and
dissociation of two nucleoid proteins, IHF and Fis, which play fundamental roles in the …

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 …

[HTML][HTML] Characterization of HMGA2 variants expands the spectrum of Silver-Russell syndrome

AV Maharaj, E Cottrell, T Thanasupawat, SD Joustra… - JCI insight, 2024 - ncbi.nlm.nih.gov
Silver-Russell syndrome (SRS) is a heterogeneous disorder characterized by intrauterine
and postnatal growth retardation. HMGA2 variants are a rare cause of SRS and its functional …

GCNA is a histone binding protein required for spermatogonial stem cell maintenance

J Ribeiro, GP Crossan - Nucleic Acids Research, 2023 - academic.oup.com
Recycling and de-novo deposition of histones during DNA replication is a critical challenge
faced by eukaryotic cells and is coordinated by histone chaperones. Spermatogenesis is …

What are the potential roles of nuclear perlecan and other heparan sulphate proteoglycans in the normal and malignant phenotype

AJ Hayes, J Melrose - International Journal of Molecular Sciences, 2021 - mdpi.com
The recent discovery of nuclear and perinuclear perlecan in annulus fibrosus and nucleus
pulposus cells and its known matrix stabilizing properties in tissues introduces the possibility …

Spatiotemporal coupling of DNA supercoiling and genomic sequence organization—a timing chain for the bacterial growth cycle?

G Muskhelishvili, P Sobetzko, A Travers - Biomolecules, 2022 - mdpi.com
In this article we describe the bacterial growth cycle as a closed, self-reproducing, or
autopoietic circuit, reestablishing the physiological state of stationary cells initially inoculated …

CSNK2A1‐mediated phosphorylation of HMGA2 modulates cisplatin resistance in cervical cancer

Z Shi, D Wu, H Xu, J Yang, X Sun - FEBS Open bio, 2021 - Wiley Online Library
The development of chemoresistance reduces the efficacy of anti‐cancer drugs. Cervical
cancer is still one of the most common cancer types in developing countries. The oncogenic …

Positive supercoiling favors transcription elongation through lac repressor-mediated DNA loops

W Xu, Y Yan, I Artsimovitch, D Dunlap… - Nucleic Acids …, 2022 - academic.oup.com
Some proteins, like the lac repressor (LacI), mediate long-range loops that alter DNA
topology and create torsional barriers. During transcription, RNA polymerase generates …

The DNA recognition motif of GapR has an intrinsic DNA binding preference towards AT-rich DNA

Q Huang, B Duan, Z Qu, S Fan, B Xia - Molecules, 2021 - mdpi.com
The nucleoid-associated protein GapR found in Caulobacter crescent us is crucial for DNA
replication, transcription, and cell division. Associated with overtwisted DNA in front of …