Results 91 to 100 of about 102,384 (311)

Interaction of HP1 and Brg1/Brm with the Globular Domain of Histone H3 Is Required for HP1-Mediated Repression [PDF]

, 2009
The heterochromatin-enriched HP1 proteins play a critical role in regulation of transcription. These proteins contain two related domains known as the chromo- and the chromoshadow-domain.
Fan Hua-Ying, Kingston Robert E., Violaine Saint-André, Christian Muchardt, Saint-Andre, Violaine, Imhof Axel, Batsché Eric, Jang Suk Min, Kingston, Robert E., Saliha Azebi, Robert E Kingston, Axel Imhof, Jang, Suk Min, Eskeland, Ragnhild, Eskeland Ragnhild, Muchardt Christian, Eric Batsché, Azebi Saliha, Fan, Hua-Ying, Muchardt, Christian, Batsche, Eric, Hua-Ying Fan, Marc Lavigne, Ragnhild Eskeland, Saint-André Violaine, Imhof, Axel, Lavigne, Marc, Azebi, Saliha, Suk Min Jang, Lavigne Marc   +29 more
core   +2 more sources

Mutant NPM1 in Acute Myeloid Leukemia Initiation and Maintenance

Aging and Cancer, EarlyView.
NPM1 mutations drive acute myeloid leukemia by acting as neomorphic transcriptional regulators that cooperate with Menin–MLL and XPO1 to sustain HOX/MEIS1 expression and block differentiation. Targeting these mutant‐specific transcriptional dependencies provides a rational therapeutic strategy for NPM1‐mutated AML.
Yanan Jiang, Zhong Fan, Runmeng Liu, Xiaotian Zhang   +3 more
wiley   +1 more source

The Role of Arp2/3 in End-Resection During DNA Double-Strand Break Repair. [PDF]

Bioessays
Arp2/3 has an evolutionarily conserved role in promoting 5’ to 3’ resection of DSBs, RAD51 filament formation, maintenance of the DNA damage checkpoint, increased mobility of DSBs, and relocation of damage in heterochromatin regions to the nuclear periphery.
Zhou FY, Haber JE.
europepmc   +2 more sources

Heterochromatin protein 1α interacts with parallel RNA and DNA G-quadruplexes

Nucleic Acids Research, 2019
The eukaryotic genome is functionally organized into domains of transcriptionally active euchromatin and domains of highly compact transcriptionally silent heterochromatin.
R. J. Roach, M. Garavís, C. González, G. Jameson, V. Filichev, T. Hale   +5 more
semanticscholar   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

Ring-like distribution of constitutive heterochromatin in bovine senescent cells. [PDF]

PLoS ONE, 2011
BACKGROUND: Cells that reach "Hayflick limit" of proliferation, known as senescent cells, possess a particular type of nuclear architecture. Human senescent cells are characterized by the presence of highly condensed senescent associated heterochromatin ...
Andrey Pichugin, Nathalie Beaujean, Xavier Vignon, Yegor Vassetzky   +3 more
doaj   +1 more source

Chromatin state analysis of the barley epigenome reveals a higher-order structure defined by H3K27me1 and H3K27me3 abundance [PDF]

, 2015
This work was supported by grant BBSRC BB/I1022899/1 ‘The diversity and evolution of the gene component of the barley pericentromeric heterochromatin’.Combinations of histones carrying different covalent modifications are a major component of epigenetic ...
Dhillon, Taniya, Milne, Iain, Katie Baker, Baker, Katie, Colas, Isabelle, Taniya Dhillon, Micha Bayer, Bayer, Micha, Milne, Linda, Linda Milne, Flavell, Andrew J., Iain Milne, Andrew J. Flavell, Cook, Nicola, Nicola Cook, Isabelle Colas   +15 more
core   +1 more source

Overcoming Artificial Structures in Resolution‐Enhanced Hi‐C Data by Signal Decomposition and Multi‐Scale Attention

Advanced Science, EarlyView.
Deep‐learning‐based signal enhancement is an effective way to recover high‐resolution details from a low‐resolution chromatin contact map. However, due to computational challenges, existing methods commonly divide up the contact map into small patches and create artificial discontinuities at patch boundaries.
Qinyao Li, Kelly Yichen Li, Chiara Nicoletti, Stephen Kwok‐Wing Tsui, Pier Lorenzo Puri, Qin Cao, Kevin Y. Yip   +6 more
wiley   +1 more source

SIRT1 Silences L1 Retrotransposons by Stabilizing Heterochromatin-Modifying Complexes. [PDF]

Aging Cell
SIRT1 binds the LINE‐1 5′‐UTR and recruits the heterochromatin modifiers Lamin B1 and KAP1 to maintain H3K9me3 levels, thereby suppressing LINE‐1 retrotransposition. SIRT1 deficiency enhances LINE‐1 transcription, leading to upregulation of senescence‐associated secretory phenotype factors, activation of the cGAS‐STING pathway, and consequent cellular ...
Wang X, Li T, Tang H, Liu MX, Peng Q, Huang X, Mao Z, Jiang Y, Geng A.   +8 more
europepmc   +2 more sources