Results 111 to 120 of about 775,451 (311)

A loopy view of telomere evolution

Frontiers in Genetics, 2015
About a decade ago, I proposed that t-loops, the lariat structures adopted by many eukaryotic telomeres, could explain how the transition from circular to linear chromosomes was successfully negotiated by early eukaryotes.
Titia eDe Lange
doaj   +1 more source

Nrf2 Drives Epigenetic Reprogramming and Acts as the Master Regulator of KLF4 Expression and Activity in Arsenic‐Induced Transformation

Advanced Science, EarlyView.
Nrf2 isn't just a protector—it's a driver of cancer stemness. The study uncovers how arsenic‐activated Nrf2 directly upregulates KLF4, a key pluripotency factor, fueling oncogenic reprogramming. Through enhancer activation and self‐reinforcing loop, Nrf2 and KLF4 co‐opt gene networks linked to epithelial‐to‐mesenchymal transition and tumor growth ...
Ziwei Wang, Zhuoyue Bi, Jessica Bamrah, Yiran Qiu, Wenxuan Zhang, Bandar Saeed Almutairy, Haoyan Ji, John D. Haley, Chitra Thakur, Fei Chen   +9 more
wiley   +1 more source

A Prion‐Like Domain in EBV EBNA1 Promotes Phase Separation and Enables SRRM1 Splicing

Advanced Science, EarlyView.
This study discoveries that EBV EBNA1 behaves as a prion‐like protein, verified using cell‐based assays and the Saccharomyces cerevisiae Sup35p prion identification system. The prion‐like domain of EBNA1 drives liquid–liquid phase separation. EBNA1 interacts with the splicing factor SRSF1 to regulate the expression of the SRRM1 splicing isoforms ...
Xiaoyue Zhang, Zhengshuo Li, Run Zheng, Xiang Zheng, Jia Wang, Can Liu, Yangge Wu, Yuqing Wen, Chunlin Ou, Songqing Fan, Chenxiao Xu, Junrui Tian, Qun Yan, Hao Nan, Xiaodong Xu, Hui Wang, Qiu Peng, Jian Ma   +17 more
wiley   +1 more source

A Modular and Customizable CRISPR/Cas Toolkit for Epigenome Editing of Cis‐regulatory Modules

Advanced Science, EarlyView.
Epigenome editing surpasses genome editing in gene regulation. Modular epigenome editing frameworks are developed to interrogate cis‐regulome, enabling tunable reprogramming of cis‐elements, uncovering their epigenetic responsiveness and cross‐species portability.
Lingrui Zhang, Jianxin Fu, Tiandan Long, Chao Zhang, Fuhua Fan, Zhaobo Lang, Jian‐Kang Zhu   +6 more
wiley   +1 more source

Snord15b Maintains Stemness of Intestinal Stem Cells via Enhancement of Alternative Splicing of Btrc Short Isoform for Suppression of β‐Catenin Ubiquitination

Advanced Science, EarlyView.
In intestinal stem cells (ISCs), Snord15b associates with Ilf2 to recruit splicing factors for alternative splicing of Btrc mRNA, leading to the generation of short Btrc. This short Btrc fails to form a functional E3 ubiquitin ligase complex for β‐catenin ubiquitination and degradation.
Yuwei Xu, Peikang Zhang, Zhen Xiong, Yufei Lan, Hui Guo, Runyuan Wu, Cunzhen Li, Hongzhe Fan, Ying Du, Xiaoxiao Zhu, Dongdong Fan, Zhonglong Wang, Yong Tian, Zusen Fan   +13 more
wiley   +1 more source

Polyadenylation Complex CFII Recognizes Downstream Cis‐element for Pre‐mRNA Polyadenylation Through Interaction with an RNA‐Binding Protein in Arabidopsis

Advanced Science, EarlyView.
This study investigates the cis‐element in pre‐mRNA recognized by the polyadenylation CFII complex. It elucidates how the CFII complex recognizes the consensus cis‐element downstream of the poly(A) site for pre‐mRNA alternative polyadenylation. This comprehensive research provides novel insights into the interaction between 3′ end processing complexes ...
Ying Cao, Ying Guo, Zhibo Yu, Huajian Nie, Jing Yang, Dingfu Qiu, Qiyu Li, Xu Xin, Chang Cheng, Yan Li, Xudong Shang, Yuling Jiao, Qingshun Quinn Li, Ligeng Ma   +13 more
wiley   +1 more source

Convergent Evolution of Fern-Specific Mitochondrial Group II Intron atp1i361g2 and Its Ancient Source Paralogue rps3i249g2 and Independent Losses of Intron and RNA Editing among Pteridaceae

Genome Biology and Evolution, 2016
Mitochondrial intron patterns are highly divergent between the major land plant clades. An intron in the atp1 gene, atp1i361g2, is an example for a group II intron specific to monilophytes (ferns). Here, we report that atp1i361g2 is lost independently at
Simon Zumkeller, V. Knoop, Nils Knie
semanticscholar   +1 more source

SCRIPT: Predicting Single‐Cell Long‐Range Cis‐Regulation Based on Pretrained Graph Attention Networks

Advanced Science, EarlyView.
SCRIPT is a novel method inferring single‐cell cis‐regulatory relationships (CRRs) from transcriptomic and chromatin accessibility data. SCRIPT incorporates two key innovations: graph causal attention networks supported by empirical CRR evidence, and representation learning enhanced through pretraining on atlas‐scale single‐cell data.
Yu Zhang, Baole Wen, Yifeng Jiao, Yuchen Liu, Xin Guo, Yushuai Wu, Jiyang Li, Limei Han, Yinghui Xu, Xin Gao, Yuan Qi, Yuan Cheng, Ying He, Weidong Tian   +13 more
wiley   +1 more source

Crystal structure of group II intron domain 1 reveals a template for RNA assembly

Nature Chemical Biology, 2015
Although the importance of large noncoding RNAs is increasingly appreciated, our understanding of their structures and architectural dynamics remains limited.
Chen Zhao, K. Rajashankar, M. Marcia, A. Pyle   +3 more
semanticscholar   +1 more source

Hypoxia‐Induced circPRELID2 Promotes Gastric Cancer Metastasis by Facilitating ZEB2 Translation via PCBP1 O‐GlcNAcylation

Advanced Science, EarlyView.
Under hypoxia, HIF1A is directly bound to the PRELID2 promoter to increase PRELID2 pre‐mRNA expression, followed by the DYRK1A–SFPQ–SAM68 complex binding to Alu‐containing introns in PRELID2 pre‐mRNA, leading to circPRELID2 circularization. CircPRELID2 interacts with PCBP1 and promotes its cytoplasmic retention.
Pengshan Zhang, Zai Luo, Yitian Xu, Yuan Zhang, Renchao Zhang, Nadina Paerhati, Shaopeng Zhang, Qianqian Cai, Zhengjun Qiu, Chen Huang   +9 more
wiley   +1 more source