Results 91 to 100 of about 72,215 (324)

Homeostasis of DNA Hemi‐Methylation in Arabidopsis through Methylation Maintenance, DNA Replication, and Nucleosome Positioning Mechanisms

Advanced Science, EarlyView.
In Arabidopsis, the homeostasis of full‐ and hemi‐methylation is mainly regulated by maintenance methylation. The maintenance methylation at hemi‐methylated dyads is highly efficient but the efficiency differs at euchromatic or heterochromatic regions. Nucleosomes impair the hemi‐ to full‐methylation transition. Lagged methylation maintenance after DNA
Hengye Chen, Chenhuan Xu
wiley   +1 more source

Compact and highly active next-generation libraries for CRISPR-mediated gene repression and activation

eLife, 2016
We recently found that nucleosomes directly block access of CRISPR/Cas9 to DNA (Horlbeck et al., 2016). Here, we build on this observation with a comprehensive algorithm that incorporates chromatin, position, and sequence features to accurately predict ...
Max A Horlbeck, Luke A Gilbert, Jacqueline E Villalta, Britt Adamson, Ryan A Pak, Yuwen Chen, Alexander P Fields, Chong Yon Park, Jacob E Corn, Martin Kampmann, Jonathan S Weissman   +10 more
doaj   +1 more source

Nucleosomes influence multiple steps during replication initiation

eLife, 2017
Eukaryotic replication origin licensing, activation and timing are influenced by chromatin but a mechanistic understanding is lacking. Using reconstituted nucleosomal DNA replication assays, we assessed the impact of nucleosomes on replication initiation.
Ishara F Azmi, Shinya Watanabe, M. F. Maloney, Sukhyun Kang, Jason A Belsky, D. MacAlpine, C. Peterson, S. Bell   +7 more
semanticscholar   +1 more source

A Split Personality for Nucleosomes [PDF]

Cell, 2014
A high-resolution look at where histones touch DNA reveals a surprisingly intricate, dynamic, and modular nucleosome. Three advances in the study by Rhee et al. include unexpected interactions between the H3 tail and linker DNA, new evidence for existence of subnucleosomal particles, and asymmetric patterns of histone modification within a single ...
Jason D. Lieb, Daniel J. McKay
openaire   +3 more sources

Spatiotemporal Transcriptomic Atlas Reveals the Regulatory Mechanisms Underlying Early Inflorescence Development and Sex Differentiation in Spinach

Advanced Science, EarlyView.
High‐resolution spatiotemporal transcriptomic data from male and female spinach inflorescences across four key stages first reveal the sex differentiation initiates at the four‐leaf stage and is governed by epigenetic regulation via the SpMSI1‐SpHDT2 complex.
Chen You, Hao Yang, Yueyan Zhao, Xiaoning Wang, Shuaijie Wei, Ning Chen, Yulan Zhang, Luxian Liu, Wei Qian, Shufen Li, Wujun Gao   +10 more
wiley   +1 more source

Nanoscale dynamics of centromere nucleosomes and the critical roles of CENP-A

bioRxiv, 2017
In the absence of a functioning centromere, chromosome segregation becomes aberrant, leading to an increased rate of aneuploidy. The highly specific recognition of centromeres by kinetochores suggests that specific structural characteristics define this ...
Micah P Stumme-Diers, Siddhartha Banerjee, Mohtadin Hashemi, Zhiqiang Sun, Y. Lyubchenko   +4 more
semanticscholar   +1 more source

Cancer Cell‐Derived Large Extracellular Vesicles Promote Venous Thromboembolism by Activating NETosis Through Delivering CYBA

Advanced Science, EarlyView.
Venous thromboembolism (VTE) is a major threat to cancer patients. Cancer‐derived large extracellular vesicles deliver CYBA (p22phox) to neutrophils, triggering reactive oxygen species (ROS) and citrullinated histone H3 (citH3) formation. This drives neutrophil extracellular traps formation (NETosis), elevating VTE risk.
Xiangji Li, Yingjiao Ju, Chenjie Xu, Shixiang Ma, Lan Sun, Qingdong Guo, Mingyuan Liu, Yibin Xie, Li Min   +8 more
wiley   +1 more source

Making better CRISPR libraries

eLife, 2016
A new algorithm improves the performance of CRISPR-based genetic screens in mammals.
Shiyou Zhu, Wensheng Wei
doaj   +1 more source

Uncovering the forces between nucleosomes using DNA origami

Science Advances, 2016
Electron microscopy with a DNA origami force spectrometer reveals the energy landscapes for nucleosome-nucleosome interactions. Revealing the energy landscape for nucleosome association may contribute to the understanding of higher-order chromatin ...
J. J. Funke, Philip Ketterer, Corinna Lieleg, S. Schunter, Philipp Korber, Hendrik Dietz   +5 more
semanticscholar   +1 more source

A Transcriptome‐Wide Mendelian Randomization Study in Isolated Human Immune Cells Highlights Risk Genes Involved in Viral Infections and Potential Drug Repurposing Opportunities for Schizophrenia

American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Schizophrenia is a neurodevelopmental psychiatric disorder characterized by symptoms of psychosis, thought disorder, and flattened affect. Immune mechanisms are associated with schizophrenia, though the precise nature of this relationship (causal, correlated, consequential) and the mechanisms involved are not fully understood.
David Stacey, Liam Gaziano, Preethi Eldi, Catherine Toben, Beben Benyamin, S. Hong Lee, Elina Hyppönen   +6 more
wiley   +1 more source