Results 1 to 10 of about 6,135 (207)

A conserved function for pericentromeric satellite DNA

open access: yeseLife, 2018
A universal and unquestioned characteristic of eukaryotic cells is that the genome is divided into multiple chromosomes and encapsulated in a single nucleus. However, the underlying mechanism to ensure such a configuration is unknown.
Madhav Jagannathan   +2 more
doaj   +2 more sources

Genetic Dissection of Morphometric Traits Reveals That Phytochrome B Affects Nucleus Size and Heterochromatin Organization in Arabidopsis thaliana

open access: yesG3: Genes, Genomes, Genetics, 2017
Microscopically visible chromatin is partitioned into two major components in Arabidopsis thaliana nuclei. On one hand, chromocenters are conspicuous foci of highly condensed “heterochromatic” domains that contain mostly repeated sequences.
Basten L. Snoek   +8 more
doaj   +1 more source

Bundling up DNA

open access: yeseLife, 2018
Structures known as chromocenters, comprising satellite DNA and proteins such as D1 or HMGA1, help to contain DNA inside the nucleus between cell divisions.
Susan A Gerbi
doaj   +1 more source

NODeJ: an ImageJ plugin for 3D segmentation of nuclear objects

open access: yesBMC Bioinformatics, 2022
Background The three-dimensional nuclear arrangement of chromatin impacts many cellular processes operating at the DNA level in animal and plant systems.
Tristan Dubos   +8 more
doaj   +1 more source

Intricate structure of the interphase chromocenter revealed by the analysis of a factor involved in species formation

open access: yesbioRxiv, 2018
In higher eukaryotes centromeres often coalesce into a large intranuclear domain called the chromocenter. Chromocenters are important for the organization of pericentric heterochromatin and a disturbance of their formation results in an upregulation of ...
N. Y. Kochanova   +8 more
semanticscholar   +1 more source

High-resolution mapping of h1 linker histone variants in embryonic stem cells. [PDF]

open access: yesPLoS Genetics, 2013
H1 linker histones facilitate higher-order chromatin folding and are essential for mammalian development. To achieve high-resolution mapping of H1 variants H1d and H1c in embryonic stem cells (ESCs), we have established a knock-in system and shown that ...
Kaixiang Cao   +15 more
doaj   +1 more source

HAC stability in murine cells is influenced by nuclear localization and chromatin organization

open access: yesBMC Cell Biology, 2009
Background Human artificial chromosomes (HAC) are small functional extrachromosomal elements, which segregate correctly during each cell division. In human cells, they are mitotically stable, however when the HAC are transferred to murine cells they show
Volpi Emanuela V   +4 more
doaj   +1 more source

Tissue-specific differences in the spatial interposition of X-chromosome and 3R chromosome regions in the malaria mosquito Anopheles messeae Fall. [PDF]

open access: yesPLoS ONE, 2015
Spatial organization of a chromosome in a nucleus is very important in biology but many aspects of it are still generally unresolved. We focused on tissue-specific features of chromosome architecture in closely related malaria mosquitoes, which have ...
Gleb Artemov   +3 more
doaj   +1 more source

Seipin deficiency increases chromocenter fragmentation and disrupts acrosome formation leading to male infertility

open access: yesCell Death and Disease, 2015
The Berardinelli–Seip congenital lipodystrophy type 2 (Bscl2, seipin) gene is involved in adipogenesis. Bscl2−/− males were infertile but had normal mating behavior.
A. E. El Zowalaty   +5 more
semanticscholar   +1 more source

MeCP2 is required for global heterochromatic and nucleolar changes during activity-dependent neuronal maturation

open access: yesNeurobiology of Disease, 2011
Mutations in MECP2, encoding methyl CpG binding protein 2, cause the neurodevelopmental disorder Rett syndrome. MeCP2 is an abundant nuclear protein that binds to chromatin and modulates transcription in response to neuronal activity.
Malaika K. Singleton   +6 more
doaj   +1 more source

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