Results 71 to 80 of about 353,053 (207)
A silencing pathway to induce H3-K9 and H4-K20 trimethylation at constitutive heterochromatin.
Genes & Development, 2004 Histone lysine methylation is a central modification to mark functionally distinct chromatin regions. In particular, H3-K9 trimethylation has emerged as a hallmark of pericentric heterochromatin in mammals. Here we show that H4-K20 trimethylation is also
G. Schotta +7 more
semanticscholar +1 more source
Therapeutic targeting of chromatin alterations in leukemia and solid tumors
International Journal of Cancer, EarlyView.Abstract Alterations in chromatin conformation and post‐translational modification of histones have become increasingly recognized as critical drivers of cancer development, progression, and therapy resistance. Recent advances in drug development have led to the establishment of several highly selective small molecule inhibitors, several of which are ...
Florian Perner +7 more
wiley +1 more source
Genetics and Molecular Biology, 2007 Chromosome analyses were performed in two grasshopper species of the genus Schistocerca, S. pallens and S. flavofasciata. Both species shared the same diploid number (2n = 23, X in males; 2n = 24, XX in females);and a conserved karyotype composed ...
Maria José de Souza +1 more
doaj +1 more source
The Antiviral Activity of Polyphenols
Molecular Nutrition &Food Research, EarlyView.Polyphenols demonstrate remarkable antiviral properties by effectively disrupting multiple biochemical processes essential for viral replication. ABSTRACT Polyphenols are secondary metabolites produced by a large variety of plants. These compounds that comprise the class of phenolic acids, stilbenes, lignans, coumarins, flavonoids, and tannins have a ...
Markus Burkard +5 more
wiley +1 more source
Key Regulators of Parasite Biology Viewed Through a Post‐Translational Modification Repertoire
PROTEOMICS, EarlyView.ABSTRACT Parasites are the leading causes of morbidity and mortality in both humans and animals, imposing substantial socioeconomic burdens worldwide. Controlling parasitic diseases has become one of the key issues in achieving “One Health”. Most parasites have sophisticated life cycles exhibiting progressive developmental stages, morphologies, and ...
Naiwen Zhang, Ning Jiang, Qijun Chen
wiley +1 more source
Aging Cell, EarlyView.Direct activation and rejuvenation of aged fibroblasts through the application of mechanical forces in a 3D spheroid culture model. The ERK signaling pathway was revealed as a key underlying mechanism. ABSTRACT Age‐related changes in human dermal fibroblasts (HDFs) contribute to impaired wound healing and skin aging.
Hui Liu +4 more
wiley +1 more source
Comparative analyses of SUV420H1 isoforms and SUV420H2 reveal differences in their cellular localization and effects on myogenic differentiation. [PDF]
PLoS ONE, 2010 BACKGROUND:Methylation of histone H4 on lysine 20 plays critical roles in chromatin structure and function via mono- (H4K20me1), di- (H4K20me2), and trimethyl (H4K20me3) derivatives.
Leanna W K Tsang +2 more
doaj +1 more source
The Influence of Spatial Variation in Chromatin Density Determined by X-ray Tomograms on the Time to Find DNA Binding Sites [PDF]
, 2013 In this work we examine how volume exclusion caused by regions of high chromatin density might influence the time required for proteins to find specific DNA binding sites. The spatial variation of chromatin density within mouse olfactory sensory neurons is determined from soft X-ray tomography reconstructions of five nuclei.
arxiv +1 more source
Polymer Modelling Predicts Chromosome Reorganisation in Senescence [PDF]
Cell Reports 28, 3212 (2019), 2020 Lamina-associated domains (LADs) cover a large part of the human genome and are thought to play a major role in shaping the nuclear architectural landscape. Here, we perform polymer simulations, microscopy and mass spectrometry to dissect the roles played by heterochromatin- and lamina-mediated interactions in nuclear organisation.
arxiv
British Journal of Pharmacology, EarlyView.Abstract DNA methylation controls DNA accessibility to transcription factors and other regulatory proteins, thereby affecting gene expression and hence cellular identity and function. As epigenetic modifications control the transcriptome, epigenetic dysfunction is strongly associated with pathological conditions and ageing.
Christopher H. Switzer
wiley +1 more source