Results 41 to 50 of about 15,818 (212)

Lamin B1 mapping reveals the existence of dynamic and functional euchromatin lamin B1 domains

open access: yesNature Communications, 2018
Lamina-associated domains (LADs) contact lamins in the nuclear lamina, and lamin B1 was thought to bind heterochromatic regions at the nuclear envelope.
Laura Pascual-Reguant   +13 more
doaj   +1 more source

Dispersion Profiles and Gene Associations of Repetitive DNAs in the Euchromatin of the Beetle Tribolium castaneum

open access: yesG3: Genes, Genomes, Genetics, 2018
Satellite DNAs are tandemly repeated sequences clustered within heterochromatin. However, in some cases, such as the major TCAST1 satellite DNA from the beetle Tribolium castaneum, they are found partially dispersed within euchromatin.
Josip Brajković   +5 more
doaj   +1 more source

Intra-Chromosomal Potentials from Nucleosomal Positioning Data [PDF]

open access: yesarXiv, 2021
No systematic method exists to derive intra-chromosomal potentials between nucleosomes along a chromosome consistently across a given genome. Such potentials can yield information on nucleosomal ordering, thermal as well as mechanical properties of chromosomes.
arxiv  

Changes in DNA, dry mass and protein content of leaf epidermis nuclei during aging of perennial monocotyledonous plants

open access: yesActa Societatis Botanicorum Poloniae, 2014
DNA, NYS and DNFB protein contents were measured cytophotometrically using the Feulgen method in the nuclei of the epidermis from. the basal zone of young leaves and from the basal and apical zones of old leaves in two perennial monocotyledonous species,
Hanna Kuran
doaj   +1 more source

Nuclear dynamics of radiation-induced foci in euchromatin and heterochromatin [PDF]

open access: greenMutation Research/Fundamental and Molecular Mechanisms of Mutagenesis, 2013
Repair of double strand breaks (DSBs) is essential for cell survival and genome integrity. While much is known about the molecular mechanisms involved in DSB repair and checkpoint activation, the roles of nuclear dynamics of radiation-induced foci (RIF) in DNA repair are just beginning to emerge.
Irene Chiolo   +3 more
openalex   +6 more sources

Protocol for detecting chromatin dynamics and screening chromatin relaxer by FRAP assay

open access: yesSTAR Protocols, 2021
Summary: We describe a fluorescence recovery after photobleaching (FRAP) protocol for assessing the dynamics of heterochromatin/euchromatin and identifying chromatin relaxers for cell fate transition.
Qi Long   +6 more
doaj  

Negative Regulators of an RNAi-Heterochromatin Positive Feedback Loop Safeguard Somatic Genome Integrity in Tetrahymena

open access: yesCell Reports, 2017
RNAi-mediated positive feedback loops are pivotal for the maintenance of heterochromatin, but how they are downregulated at heterochromatin-euchromatin borders is not well understood.
Jan H. Suhren   +5 more
doaj   +1 more source

Euchromatin Activity Enhances Segregation and Compaction of Heterochromatin in the Cell Nucleus

open access: yesPhysical Review X, 2022
The large-scale organization of the genome inside the cell nucleus is critical for the cell’s function. Chromatin—the functional form of DNA in cells—serves as a template for active nuclear processes such as transcription, replication, and DNA repair ...
Achal Mahajan   +4 more
doaj   +1 more source

Differential DNA lesion formation and repair in heterochromatin and euchromatin [PDF]

open access: yesCarcinogenesis, 2015
Discretely orchestrated chromatin condensation is important for chromosome protection from DNA damage. However, it is still unclear how different chromatin states affect the formation and repair of nucleotide excision repair (NER) substrates, e.g.
Altaf A. Wani   +4 more
openaire   +3 more sources

Transcription organizes euchromatin similar to an active microemulsion [PDF]

open access: yes, 2017
Chromatin is organized into heterochromatin, which is transcriptionally inactive, and euchromatin, which can switch between transcriptionally active and inactive states. This switch in euchromatin activity is accompanied by changes in its spatial distribution. How euchromatin rearrangements are established is unknown.
Zaburdaev   +7 more
openaire   +2 more sources

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