Results 51 to 60 of about 62,692 (225)

Precise mapping of new group I introns in tRNA genes

bioRxiv, 2020
Bacterial tRNA have been found interrupted at various positions in the anticodon loop by group I introns, in four types. The primary bioinformatic tool for group I intron discovery is a covariance model that can identify conserved features in the ...
K. Williams
semanticscholar   +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

Functionality of In vitro Reconstituted Group II Intron RmInt1-Derived Ribonucleoprotein Particles [PDF]

, 2016
The functional unit of mobile group II introns is a ribonucleoprotein particle (RNP) consisting of the intron-encoded protein (IEP) and the excised intron RNA. The IEP has reverse transcriptase activity but also promotes RNA splicing, and the RNA-protein
García-Rodríguez, Fernando, Molina-Sánchez, M.D., Toro, Nicolás   +2 more
core   +2 more sources

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

Broad role for YBX1 in defining the small noncoding RNA composition of exosomes. [PDF]

, 2017
RNA is secreted from cells enclosed within extracellular vesicles (EVs). Defining the RNA composition of EVs is challenging due to their coisolation with contaminants, lack of knowledge of the mechanisms of RNA sorting into EVs, and limitations of ...
Lambowitz, Alan M, Nottingham, Ryan M, Qin, Yidan, Schekman, Randy, Shurtleff, Matthew J, Temoche-Diaz, Morayma M, Yao, Jun   +6 more
core   +1 more source

Molecular Chain Elongation Mechanism for n‐Caproate Biosynthesis by Megasphaera Hexanoica

Advanced Science, EarlyView.
The medium‐chain carboxylate‐producing microbe Megasphaera hexanoica is analyzed through genomics, transcriptomics, and metabolic engineering. The n‐caproate biosynthetic pathway is reconstructed in Escherichia coli, highlighting MhTHL as a key β‐ketothiolase. Structural analysis and mutagenesis reveal that MhTHL has a distinct substrate‐binding pocket,
Byoung Seung Jeon, Eun‐Jung Kim, Hogyun Seo, Hyunjin Kim, Seungjin Shin, Caroline Schlaiß, Largus T. Angenent, Kyung‐Jin Kim, Byoung‐In Sang   +8 more
wiley   +1 more source

Giant reverse transcriptase-encoding transposable elements at telomeres [PDF]

, 2017
Author Posting. © The Author(s), 2017. This is the author's version of the work. It is posted here by permission of Oxford University Press for personal use, not for redistribution.
Arkhipova, Irina R., Rodriguez, Fernando, Yushenova, Irina A.   +2 more
core   +1 more source

Post‐Translational Modifications of TOE3 Regulate Antiviral Defense in Tobacco

Advanced Science, EarlyView.
CK2αL phosphorylates TOE3 and enhances its stability, while FBXL1 promotes the ubiquitination‐degradation of TOE3 via the 26S proteasome. Compared to CK2αL‐phosphorylated TOE3, nonphosphorylated TOE3 shows a much higher affinity for FBXL1 and is more susceptible to ubiquitination‐degradation, thus facilitating viral infection. The regulatory mechanisms
Bolei Jiao, Baijun Wu, Honghui Lin, Dehui Xi   +3 more
wiley   +1 more source

Cell Fate Determination and Lineage Tracing: Technological Evolution and Multidimensional Applications

Advanced Science, EarlyView.
This figure is a candidate for the cover image. It shows a whole‐mount fluorescent image of lymphatic vessels (red) in the heart of an adult Cdh5‐Dre; Prox1‐RSR‐CreER; Rosa26‐tdT mouse. Image courtesy of Ximeng Han. Abstract Cell fate determination is a fundamental process in multicellular development.
Hui Chen, Zhicong Liu, Qiang Shu, Bin Zhou   +3 more
wiley   +1 more source

Evidence for a group II intron-like catalytic triplex in the spliceosome

Nature Structural &Molecular Biology, 2014
To catalyze pre-mRNA splicing, U6 small nuclear RNA positions two metals that interact directly with the scissile phosphates. U6 metal ligands correspond stereospecifically to metal ligands within the catalytic domain V of a group II self-splicing intron.
S. Fica, Melissa A. Mefford, J. Piccirilli, Jonathan P Staley   +3 more
semanticscholar   +1 more source