Results 31 to 40 of about 25,854 (244)

HDAC1 SUMOylation promotes Argonaute-directed transcriptional silencing in C. elegans

eLife, 2021
Eukaryotic cells use guided search to coordinately control dispersed genetic elements. Argonaute proteins and their small RNA cofactors engage nascent RNAs and chromatin-associated proteins to direct transcriptional silencing.
Heesun Kim, Yue-He Ding, Gangming Zhang, Yong-Hong Yan, Darryl Conte Jr, Meng-Qiu Dong, Craig C Mello   +6 more
doaj   +1 more source

RISC-interacting clearing 3’- 5’ exoribonucleases (RICEs) degrade uridylated cleavage fragments to maintain functional RISC in Arabidopsis thaliana

eLife, 2017
RNA-induced silencing complex (RISC) is composed of miRNAs and AGO proteins. AGOs use miRNAs as guides to slice target mRNAs to produce truncated 5' and 3' RNA fragments. The 5' cleaved RNA fragments are marked with uridylation for degradation.
Zhonghui Zhang, Fuqu Hu, Min Woo Sung, Chang Shu, Claudia Castillo-González, Hisashi Koiwa, Guiliang Tang, Martin Dickman, Pingwei Li, Xiuren Zhang   +9 more
doaj   +1 more source

microRNA-mediated regulation of microRNA machinery controls cell fate decisions

eLife, 2021
microRNAs associate with Argonaute proteins, forming the microRNA-induced silencing complex (miRISC), to repress target gene expression post-transcriptionally.
Qiuying Liu, Mariah K Novak, Rachel M Pepin, Taylor Eich, Wenqian Hu   +4 more
doaj   +1 more source

Human GW182 Paralogs Are the Central Organizers for RNA-Mediated Control of Transcription

Cell Reports, 2017
In the cytoplasm, small RNAs can control mammalian translation by regulating the stability of mRNA. In the nucleus, small RNAs can also control transcription and splicing.
Jessica A. Hicks, Liande Li, Masayuki Matsui, Yongjun Chu, Oleg Volkov, Krystal C. Johnson, David R. Corey   +6 more
doaj   +1 more source

The Argonaute protein family [PDF]

Genome Biology, 2008
Argonaute proteins were first discovered genetically, and extensive research in the past few years has revealed that members of the Argonaute protein family are key players in gene-silencing pathways guided by small RNAs. Small RNAs such as short interfering RNAs (siRNAs), microRNAs (miRNAs) or Piwi-interacting RNAs (piRNAs) are anchored into specific ...
Höck, J., Meister, G.
openaire   +3 more sources

Knocking out the Argonautes [PDF]

Cell, 2006
Argonaute proteins are key players in gene silencing involving small RNAs. In this issue, Yigit et al. (2006) report a comprehensive study of Argonautes in the worm that places many of the 27 family members into a complex gene-silencing network.
Steiner, F.A., Plasterk, R.H.A.
openaire   +2 more sources

5′tRF‐GlyGCC Promotes Breast Cancer Progression via LDHA‐Mediated Glycolysis and Macrophage Polarization

Advanced Science, EarlyView.
5’tRF‐GlyGCC promotes breast cancer malignancy by binding to LDHA. This interaction, facilitated by FGFR1 and LDHA phosphorylation, enhances glycolysis. Additionally, 5’tRF‐GlyGCC/LDHA signaling recruits and polarizes macrophages into a pro‐tumor M2 state via CCL7, thus remodeling the tumor microenvironment.
Cheng Yi, Yunqing Lu, Xing Chang, Ying Wang, Jiawang Zhou, Guoyou Xie, Lijun Tao, Zhaotong Wang, Yifan Tian, Lihong Wang, Feng Tang, Yijing Zheng, Xinchen Yue, Jinping Lei, Xiansong Wang, Lichen Ge, Zhuojia Chen, Hongsheng Wang   +17 more
wiley   +1 more source

Key Mechanistic Principles and Considerations Concerning RNA Interference

Frontiers in Plant Science, 2020
Canonical RNAi, one of the so-called RNA-silencing mechanisms, is defined as sequence-specific RNA degradation induced by long double-stranded RNA (dsRNA).
Petr Svoboda
doaj   +1 more source

Targeting Argonaute to chromatin [PDF]

Genes & Development, 2016
In many eukaryotes, siRNAs bound to Argonaute proteins guide chromatin-modifying enzymes to complementary loci, resulting in transcriptional gene silencing. Multiple lines of evidence indicate that siRNAs base-pair with longer RNAs produced at target loci, but the possibility that siRNAs base-pair directly with DNA remains an attractive hypothesis.
Wendte, Jered M., Pikaard, Craig S.
openaire   +2 more sources

Non‐Targeting shRNA‐Encoded Plasmid DNA Enhances Protective Immunity Through RIDD‐RIG‐I Signaling Pathway in the Zika Virus Animal Model

Advanced Science, EarlyView.
We present a novel DNA vaccine platform featuring intrinsic, non‐targeting dsRNA that significantly enhances immune responses by activating the regulated IRE1‐dependent decay‐RIG‐I signaling pathway. This research elucidates a previously uncharacterized mechanism for dsRNA‐mediated innate immune activation.
Min‐Syuan Huang, Hung‐Chun Liao, Po Peng, Wan‐Ling Wu, Kit Man Chai, Mei‐Yu Chen, Guann‐Yi Yu, Tsung‐Hsien Chuang, Hsin‐Wei Chen, Chuang‐Rung Chang, Shih‐Jen Liu   +10 more
wiley   +1 more source