Topological constraints with optimal length promote the formation of chromosomal territories at weakened degree of phase separation
J Wei, H Tian, R Zhou, Y Shao, F Song… - The Journal of Physical …, 2021 - ACS Publications
It is generally agreed that the nuclei of eukaryotic cells at interphase are partitioned into
disjointed territories, with distinct regions occupied by certain chromosomes. However, the …
disjointed territories, with distinct regions occupied by certain chromosomes. However, the …
Structure and dynamics of interphase chromosomes
A Rosa, R Everaers - PLoS computational biology, 2008 - journals.plos.org
During interphase chromosomes decondense, but fluorescent in situ hybridization
experiments reveal the existence of distinct territories occupied by individual chromosomes …
experiments reveal the existence of distinct territories occupied by individual chromosomes …
Entropy gives rise to topologically associating domains
PA Vasquez, C Hult, D Adalsteinsson… - Nucleic Acids …, 2016 - academic.oup.com
We investigate chromosome organization within the nucleus using polymer models whose
formulation is closely guided by experiments in live yeast cells. We employ bead-spring …
formulation is closely guided by experiments in live yeast cells. We employ bead-spring …
Steric repulsion introduced by loop constraints modulates the microphase separation of chromatins
J Wei, Y Xue, Y Liu, H Tian, Y Shao… - The Journal of Chemical …, 2024 - pubs.aip.org
Within the confines of a densely populated cell nucleus, chromatin undergoes intricate
folding, forming loops, domains, and compartments under the governance of topological …
folding, forming loops, domains, and compartments under the governance of topological …
Lattice animal model of chromosome organization
Polymer models tied together by constraints of looping and confinement have been used to
explain many of the observed organizational characteristics of interphase chromosomes …
explain many of the observed organizational characteristics of interphase chromosomes …
Topological constraints and finite-size effects in quantitative polymer models of chromatin organization
Polymer physics simulations have provided a versatile framework to quantitatively explore
the complex mechanisms driving chromosome organization. However, simulating whole …
the complex mechanisms driving chromosome organization. However, simulating whole …
Compartmentalization with nuclear landmarks yields random, yet precise, genome organization
The 3D organization of eukaryotic genomes plays an important role in genome function.
While significant progress has been made in deciphering the folding mechanisms of …
While significant progress has been made in deciphering the folding mechanisms of …
The short-sequence design of DNA and its involvement in the 3-D structure of the genome
G Lamolle, V Sabbia, H Musto, G Bernardi - Scientific Reports, 2018 - nature.com
Recent investigations have shown that isochores are characterized by a 3-D structure which
is primarily responsible for the topology of chromatin domains. More precisely, an analysis of …
is primarily responsible for the topology of chromatin domains. More precisely, an analysis of …
Effects of topological constraints on globular polymers
Topological constraints can affect both equilibrium and dynamic properties of polymer
systems and can play a role in the organization of chromosomes. Despite many theoretical …
systems and can play a role in the organization of chromosomes. Despite many theoretical …
Crumpled polymer with loops recapitulates key features of chromosome organization
Chromosomes are exceedingly long topologically constrained polymers compacted in a cell
nucleus. We recently suggested that chromosomes are organized into loops by an active …
nucleus. We recently suggested that chromosomes are organized into loops by an active …