Results 21 to 30 of about 60,035 (243)

DNA-Stimulated Liquid-Liquid phase separation by eukaryotic topoisomerase ii modulates catalytic function

open access: yeseLife, 2022
Type II topoisomerases modulate chromosome supercoiling, condensation, and catenation by moving one double-stranded DNA segment through a transient break in a second duplex.
Joshua Jeong   +4 more
doaj   +1 more source

Establishment of a mouse model with misregulated chromosome condensation due to defective Mcph1 function. [PDF]

open access: yesPLoS ONE, 2010
Mutations in the human gene MCPH1 cause primary microcephaly associated with a unique cellular phenotype with premature chromosome condensation (PCC) in early G2 phase and delayed decondensation post-mitosis (PCC syndrome).
Marc Trimborn   +20 more
doaj   +1 more source

Mechanics of Sister Chromatids studied with a Polymer Model

open access: yesFrontiers in Physics, 2013
Sister chromatid cohesion denotes the phenomenon that sister chromatids are initially attached to each other in mitosis to guarantee the error-free distribution into the daughter cells.
Yang eZhang   +3 more
doaj   +1 more source

Bacillus subtilis Smc condenses chromosomes in a heterologous cell system, which is down-regulated by ScpAB

open access: yesBMC Research Notes, 2020
Objective Structural maintenance of chromosomes (SMC) proteins are key players in chromosome dynamics in all types of organisms. The so-called condensin subfamily is essential for chromosome condensation in eukaryotic cells, as is the bacterial SMC ...
Tobias Knust, Peter L. Graumann
doaj   +1 more source

Fold-change of chromatin condensation in yeast is a conserved property

open access: yesScientific Reports, 2022
During mitosis, chromatin is condensed and organized into mitotic chromosomes. Condensation is critical for genome stability and dynamics, yet the degree of condensation is significantly different between multicellular and single-cell eukaryotes. What is
Katreena Yamin   +9 more
doaj   +1 more source

A low Smc flux avoids collisions and facilitates chromosome organization in Bacillus subtilis

open access: yeseLife, 2021
SMC complexes are widely conserved ATP-powered DNA-loop-extrusion motors indispensable for organizing and faithfully segregating chromosomes. How SMC complexes translocate along DNA for loop extrusion and what happens when two complexes meet on the same ...
Anna Anchimiuk   +5 more
doaj   +1 more source

Condensation patterns of prophase/prometaphase chromosome are correlated with H4K5 histone acetylation and genomic DNA contents in plants. [PDF]

open access: yesPLoS ONE, 2017
Mitotic prophase chromosome condensation plays an essential role in nuclear division being therefore regulated by highly conserved mechanisms. However, degrees of chromatin condensation in prophase-prometaphase cells may vary along the chromosomes ...
Lidiane Feitoza   +2 more
doaj   +1 more source

Chromosome condensation: Packaging the genome [PDF]

open access: yesCurrent Biology, 2001
The packaging of centimetre long DNA molecules into compact metaphase chromosomes is essential for genome segregation in anaphase. The chromosomal condensin complex plays a crucial part in this packaging, and important new insight into condensin action in vitro and in vivo has recently been gained.
openaire   +2 more sources

Comparison of mitotic cell death by chromosome fragmentation to premature chromosome condensation

open access: yesMolecular Cytogenetics, 2010
Mitotic cell death is an important form of cell death, particularly in cancer. Chromosome fragmentation is a major form of mitotic cell death which is identifiable during common cytogenetic analysis by its unique phenotype of progressively degraded ...
Bremer Steven W   +6 more
doaj   +1 more source

Activation of RAF1 (c-RAF) by the Marine Alkaloid Lasonolide A Induces Rapid Premature Chromosome Condensation

open access: yesMarine Drugs, 2015
Lasonolide A (LSA), a potent antitumor polyketide from the marine sponge, Forcepia sp., induces rapid and reversible protein hyperphosphorylation and premature chromosome condensation (PCC) at nanomolar concentrations independent of cyclin-dependent ...
Rozenn Jossé   +5 more
doaj   +1 more source

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