Genome modeling: from chromatin fibers to genes

S Portillo-Ledesma, Z Li, T Schlick - Current Opinion in Structural Biology, 2023 - Elsevier
The intricacies of the 3D hierarchical organization of the genome have been approached by
many creative modeling studies. The specific model/simulation technique combination …

[HTML][HTML] Histone dynamics mediate DNA unwrapping and sliding in nucleosomes

GA Armeev, AS Kniazeva, GA Komarova… - Nature …, 2021 - nature.com
Nucleosomes are elementary building blocks of chromatin in eukaryotes. They tightly
wrap∼ 147 DNA base pairs around an octamer of histone proteins. How nucleosome …

Linking chromatin composition and structural dynamics at the nucleosome level

GA Armeev, AK Gribkova, I Pospelova… - Current opinion in …, 2019 - Elsevier
Nucleosomes are fundamental units of chromatin compaction, which organize∼ 200 DNA
base pairs using an octamer of histone proteins. Their ubiquitous presence in the cell …

[HTML][HTML] Implementation of residue-level coarse-grained models in GENESIS for large-scale molecular dynamics simulations

C Tan, J Jung, C Kobayashi, DUL Torre… - PLOS Computational …, 2022 - journals.plos.org
Residue-level coarse-grained (CG) models have become one of the most popular tools in
biomolecular simulations in the trade-off between modeling accuracy and computational …

[HTML][HTML] Multiscale modeling of genome organization with maximum entropy optimization

X Lin, Y Qi, AP Latham, B Zhang - The Journal of chemical physics, 2021 - pubs.aip.org
Three-dimensional (3D) organization of the human genome plays an essential role in all
DNA-templated processes, including gene transcription, gene regulation, and DNA …

Determining sequence-dependent DNA oligonucleotide hybridization and dehybridization mechanisms using coarse-grained molecular simulation, markov state …

MS Jones, B Ashwood, A Tokmakoff… - Journal of the …, 2021 - ACS Publications
A robust understanding of the sequence-dependent thermodynamics of DNA hybridization
has enabled rapid advances in DNA nanotechnology. A fundamental understanding of the …

A bottom-up coarse-grained model for nucleosome–nucleosome interactions with explicit ions

T Sun, V Minhas, A Mirzoev, N Korolev… - Journal of Chemical …, 2022 - ACS Publications
The nucleosome core particle (NCP) is a large complex of 145–147 base pairs of DNA and
eight histone proteins and is the basic building block of chromatin that forms the …

DNA sliding in nucleosomes via twist defect propagation revealed by molecular simulations

GB Brandani, T Niina, C Tan, S Takada - Nucleic acids research, 2018 - academic.oup.com
While nucleosomes are highly stable structures as fundamental units of chromatin, they also
slide along the DNA, either spontaneously or by active remodelers. Here, we investigate the …

[PDF][PDF] Nucleosomal DNA dynamics mediate Oct4 pioneer factor binding

J Huertas, CM MacCarthy, HR Schöler, V Cojocaru - Biophysical Journal, 2020 - cell.com
Transcription factor (TF) proteins bind to DNA to regulate gene expression. Normally,
accessibility to DNA is required for their function. However, in the nucleus, the DNA is often …

Molecular mechanism of spontaneous nucleosome unraveling

D Winogradoff, A Aksimentiev - Journal of molecular biology, 2019 - Elsevier
Meters of DNA wrap around histone proteins to form nucleosomes and fit inside the micron-
diameter nucleus. For the genetic information encoded in the DNA to become available for …