Results 101 to 110 of about 1,693,917 (277)

RNA from a simple-tandem repeat is required for sperm maturation and male fertility in Drosophila melanogaster. [PDF]

, 2019
Tandemly-repeated DNAs, or satellites, are enriched in heterochromatic regions of eukaryotic genomes and contribute to nuclear structure and function. Some satellites are transcribed, but we lack direct evidence that specific satellite RNAs are required ...
Allshire, Brown, Cai, Chen, Demarco, Dernburg, Ding, Eren-Ghiani, Ferree, Herbert, Hoskins, Hoskins, Jagannathan, Jain, Jandura, Jayaramaiah Raja, Johnson, Kaessmann, Kelemen, Kost, Larracuente, Legendre, Lohe, Lohe, McKee, McNulty, Ni, Nicholson, Pathak, Rathke, Rathke, Rinn, Rošić, Shirai, Shpiz, Steinhauer, Strom, Sun, Velazquez Camacho, Wei, White-Cooper, White-Cooper, Yap, Yuan, Zhu   +44 more
core   +2 more sources

Heterochromatin protein 1 is recruited to various types of DNA damage [PDF]

Journal of Cell Biology, 2009
Heterochromatin protein 1 (HP1) family members are chromatin-associated proteins involved in transcription, replication, and chromatin organization. We show that HP1 isoforms HP1-α, HP1-β, and HP1-γ are recruited to ultraviolet (UV)-induced DNA damage and double-strand breaks (DSBs) in human cells. This response to DNA damage requires the chromo shadow
Luijsterburg, M.S., Dinant, C., Lans, H., Stap, J., Wiernasz, E.S., Lagerwerf, S., Warmerdam, D.O., Lindh, M., Brink, M.C., Dobrucki, J.W., Aten, J.A., Fousteri, M.I., Jansen, G., Dantuma, N.P., Vermeulen, W., Mullenders, L.H.F., Houtsmuller, A.B., Verschure, P.J., van Driel, R.   +18 more
openaire   +6 more sources

Hyperviscous Diabetic Bone Marrow Niche Impairs BMSCs Osteogenesis via TRPV2‐Mediated Cytoskeletal‐Nuclear Mechanotransduction

Advanced Science, EarlyView.
Diabetic bone marrow exhibits pathological ECM hyperviscosity that activates TRPV2‐mediated Ca2⁺ influx, leading to perinuclear F‐actin disassembly, nuclear deformation, and chromatin condensation. This cytoskeletal‐nuclear decoupling suppresses osteogenic differentiation of BMSCs.
Yao Wen, Xinhui Zheng, Jieliu Li, Minyu He, Dongqi Fan, Xingyu Zhu, Qiming Zhai, Liangjing Xin, Tao Chen   +8 more
wiley   +1 more source

Np95 Is Implicated in Pericentromeric Heterochromatin Replication and in Major Satellite Silencing [PDF]

, 2006
Heterochromatin plays an important role in transcriptional repression, for the correct segregation of chromosomes and in the maintenance of genome stability.
BONAPACE I.M., CANTARINI L, NEGRI D, PAPAIT R, PECORARO D, PISTORE C   +5 more
core  

High resolution physical mapping of single gene fragments on pachytene chromosome 4 and 7 of Rosa [PDF]

, 2015
Background: Rosaceae is a family containing many economically important fruit and ornamental species. Although fluorescence in situ hybridization (FISH)-based physical mapping of plant genomes is a valuable tool for map-based cloning, comparative ...
Khrustaleva, Ludmila I, Kirov, Ilya V, Van Laere, Katrijn   +2 more
core   +2 more sources

Red Blood Cells Internalize Extracellular DNA via Apoptotic Bodies with Clinical Relevance to Cancer Patients

Advanced Science, EarlyView.
Mature red blood cells (RBCs) can capture extracellular DNA, with short fragments homologous to cfDNA. This uptake is mediated by apoptotic bodies, which induce RBC oxidative stress, deformation, and accelerated in vivo clearance. The rbcDNA abundance correlates with tumor burden and therapeutic response, highlighting its potential as a liquid biopsy ...
Zihang Zeng, Zongbi Yi, Jing Hu, Jiali Li, Yu Xu, Xiuli Guo, Qian Ji, Kaixiang Feng, Ying Zhang, Sirui Bai, Yushuang Tan, Yufei Yan, Linzhi Han, Jing Jiang, Tengfei Wang, Xiang Wang, Ziqing Zhan, Ruiying Huang, Jinfang Zhang, Conghua Xie, Binghe Xu   +20 more
wiley   +1 more source

Gene regulation and epigenotype in Friedreich's ataxia [PDF]

, 2008
Friedreich??????s ataxia (FRDA) is known to be provoked by an abnormal GAA-repeat expansion located in the first intron of the FXN gene. As a result of the GAA expansion, patients exhibit low levels of FXN mRNA, leading to FRDA.
Rothe, Nadine, Rothe, Nadine
core   +2 more sources

A Self‐Organized Liquid Reaction Container for Cellular Memory

Advanced Science, EarlyView.
How cells restore epigenetic information lost during replication is not known. This work proposes a mechanism based on the formation of biomolecular condensates. These condensates are induced by the chromosome itself and serve as reaction vessels for reconstructing missing epigenetic markers.
Sukanta Mukherjee, Enrico Skoruppa, Holger Merlitz, Jens‐Uwe Sommer, Helmut Schiessel   +4 more
wiley   +1 more source

HP1 loses its chromatin clustering and phase separation function across evolution

Nature Communications
Heterochromatin protein 1 (HP1) is a multifunctional chromatin-associated protein conserved from fission yeast to mammals. HP1 has been suggested to drive heterochromatin formation via phase separation.
Sanâa Bensaha, Dominika Lewandowska, Fernando Muzzopappa, Stephanie Hutin, Mark D. Tully, Michela Anfossi, Florence M. Cammas, Christophe Normand, Fabian Erdel   +8 more
doaj   +1 more source

Citrullination of HP1γ chromodomain affects association with chromatin

Epigenetics & Chromatin, 2019
Background Stem cell differentiation involves major chromatin reorganisation, heterochromatin formation and genomic relocalisation of structural proteins, including heterochromatin protein 1 gamma (HP1γ). As the principal reader of the repressive histone
Meike Wiese, Andrew J. Bannister, Srinjan Basu, Wayne Boucher, Kai Wohlfahrt, Maria A. Christophorou, Michael L. Nielsen, David Klenerman, Ernest D. Laue, Tony Kouzarides   +9 more
doaj   +1 more source