Results 91 to 100 of about 64,059 (299)

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

RACK7 Interacts with PRC2 Complex to Regulate Astrocyte Development

Advanced Science, EarlyView.
The study investigates the role of RACK7 in brain development using a conditional knockout mouse model. RACK7 deficiency results in developmental defects and abnormal astrocyte development by disrupting H3K27me3 chromatin binding. The underlying mechanism involves RACK7 interacting with the PRC2 complex to regulate the genomic localization of SUZ12 and
Fangfang Jiao, Tianxiang Tang, Bowen Wang, Shengfei He, Yue Zhang, Li Dong, Bo Xu, Ying Liu, Ping Zhu, Rui Guo   +9 more
wiley   +1 more source

ISG15 Enhances the Activity of γ‐Glutamate Cysteine Ligase to Suppress Apoptosis in High Fat Diet‐Promoted Hepatocellular Carcinoma

Advanced Science, EarlyView.
Hepatocellular carcinoma (HCC) cells under high‐fat environment constrain harmful reactive oxygen species (ROS) by enhancing glutathione synthesis though upregulating interferon stimulated gene 15 (ISG15). In this process, upregulated high mobility group A1 (HMGA1) enhances ISG15 transcription, upregulated ISG15 subsequently noncovalently binds with ...
Xinran Liu, Qiujin Ma, Zhao Jia, Yihao Zhou, Churong Zou, Yushuo Xiao, Yuchen Chen, Chuyao Ma, Liangliang Song, Jing Yang, Chen Wang, Huidie Xu, Hong Chen, Jiajian Shi, Junqiu Yue, Yu Sun, Desheng Hu, Robert B Petersen, Yangkai Li, Anlin Peng, Kun Huang, Ling Zheng   +21 more
wiley   +1 more source

STING Agonists and How to Reach Their Full Potential in Cancer Immunotherapy

Advanced Science, EarlyView.
STING agonists show promise in preclinical studies in boosting an anti‐tumor response using the immune system. However, different limitations remain, and future research is needed to better understand how STING activation impacts the tumor microenvironment, identify effective combination strategies, and determine the best tumor types for STING agonist ...
Laura Gehrcken, Christophe Deben, Evelien Smits, Jonas R.M. Van Audenaerde   +3 more
wiley   +1 more source

Insights into distinct regulatory modes of nucleosome positioning

BMC Genomics, 2009
Background The nucleosome is the fundamental unit of eukaryotic genomes. Experimental evidence suggests that the genomic DNA sequence and a variety of protein factors contribute to nucleosome positioning in vivo.
Feng Jihua, Xiang Qian, Dai Xianhua, Dai Zhiming, Deng Yangyang, Wang Jiang   +5 more
doaj   +1 more source

Targeted Therapies in Myelofibrosis: Present Landscape, Ongoing Studies, and Future Perspectives

American Journal of Hematology, EarlyView.
ABSTRACT Myelofibrosis (MF) is a myeloproliferative neoplasm that is accompanied by driver JAK2, CALR, or MPL mutations in more than 90% of cases, leading to constitutive activation of the JAK–STAT pathway. MF is a multifaceted disease characterized by trilineage myeloid proliferation with prominent megakaryocyte atypia and bone marrow fibrosis, as ...
Giuseppe G. Loscocco, Paola Guglielmelli
wiley   +1 more source

Structural features based genome-wide characterization and prediction of nucleosome organization

BMC Bioinformatics, 2012
Background Nucleosome distribution along chromatin dictates genomic DNA accessibility and thus profoundly influences gene expression. However, the underlying mechanism of nucleosome formation remains elusive.
Gan Yanglan, Guan Jihong, Zhou Shuigeng, Zhang Weixiong   +3 more
doaj   +1 more source

Theory of Nucleosome Corkscrew Sliding in the Presence of Synthetic DNA Ligands [PDF]

arXiv, 2004
Histone octamers show a heat-induced mobility along DNA. Recent theoretical studies have established two mechanisms that are qualitatively and quantitatively compatible with in vitro experiments on nucleosome sliding: Octamer repositiong through one-basepair twist defects and through ten-basepair bulge defects. A recent experiment demonstrated that the
arxiv  

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

Molecular Dynamics Simulations of a Nucleosome and Free DNA [PDF]

arXiv, 2004
Nucleosomes organize the folding of DNA into chromatin and significantly influence transcription, replication, regulation and repair. All atom molecular dynamics simulations of a nucleosome and of its 146 basepairs of DNA free in solution have been conducted.
arxiv