Catégorie
Chromosome
Publications associées (308)
Inheritance of H3K9 methylation regulates genome architecture in Drosophila early embryos
Constitutive heterochromatin is essential for transcriptional silencing and genome integrity. The establishment of constitutive heterochromatin in early embryos and its role in early fruitfly development are unknown. Lysine 9 trimethylation of histone H3 ( ...
Springernature2024Whole-genome doubling drives oncogenic loss of chromatin segregation
Elisa Oricchio, Daniele Tavernari, Natalya Katanayeva, Ruxandra-Andreea Lambuta, Juan Diaz Miyar, Giovanni Ciriello
Whole-genome doubling (WGD) is a recurrent event in human cancers and it promotes chromosomal instability and acquisition of aneuploidies(1-8). However, the three-dimensional organization of chromatin in WGD cells and its contribution to oncogenic phenotyp ...
NATURE PORTFOLIO2023The THO complex counteracts TERRA R-loop-mediated telomere fragility in telomerase(+) cells and telomeric recombination in ALT(+) cells
Joachim Lingner, Rita Valador Fernandes
Telomeres are the nucleoprotein structures at the ends of linear chromosomes. Telomeres are transcribed into long non-coding Telomeric Repeat-Containing RNA (TERRA), whose functions rely on its ability to associate with telomeric chromatin. The conserved T ...
OXFORD UNIV PRESS2023Species-specific regulation of XIST by the JPX/FTX orthologs
X chromosome inactivation (XCI) is an essential process, yet it initiates with remarkable diversity in various mammalian species. XIST, the main trigger of XCI, is controlled in the mouse by an interplay of lncRNA genes (LRGs), some of which evolved concom ...
OXFORD UNIV PRESS2023Whole genome doubling promotes tumorigenesis through loss of chromatin segregation and compartment repositioning
Whole genome doubling (WGD) events are drivers of genetic innovation across vertebrate evolution. While generally detrimental to mammalian organisms, WGDs are crucial in the development of various plants and fungi, as well as for the terminal differentiati ...
EPFL2023Regulation and impact of TERRA R-loops at human telomeres
Telomeres are the nucleoprotein structures found at the ends of linear chromosomes. They ensure that the termini of chromosomes are not inappropriately recognized as sites of DNA damage, and are therefore crucial for genome stability. In spite of the heter ...
EPFL2023Telomere protection against oxidative stress
Telomeres are nucleoprotein structures at the ends of linear chromosomes, being essential for the maintenance of genomic integrity. Telomeres have a unique structure which distinguishes chromosome termini from DNA damage sites. Shelterin complexes are the ...
EPFL2023CENP-A and CENP-B collaborate to create an open centromeric chromatin state
Beat Fierz, Wei Cai, Harsh Nagpal
Centromeres are epigenetically defined via the presence of the histone H3 variant CENP-A. Contacting CENP-A nucleosomes, the constitutive centromere associated network (CCAN) and the kinetochore assemble, connecting the centromere to spindle microtubules d ...
Berlin2023Secondary structure of the human mitochondrial genome affects formation of deletions
Jacques Fellay, Konstantin Popadin
BackgroundAging in postmitotic tissues is associated with clonal expansion of somatic mitochondrial deletions, the origin of which is not well understood. Such deletions are often flanked by direct nucleotide repeats, but this alone does not fully explain ...
BMC2023Centromere structure and function: lessons from Drosophila
The fruit fly Drosophila melanogaster serves as a powerful model organism for advancing our understanding of biological processes, not just by studying its similarities with other organisms including ourselves but also by investigating its differences to u ...
Bethesda2023