Results 101 to 110 of about 320,867 (304)

Cold Orthogonal Translation: A Psychrophilic Pyrrolysyl‐tRNA Synthetase Boosts Genetic Code Expansion in E. coli

Advanced Science, EarlyView.
ABSTRACT Orthogonal translation systems (OTSs) enable site‐specific incorporation of non‐canonical amino acids (ncAAs) and are central to genetic code expansion. Current engineering strategies typically rely on hyperstable aminoacyl tRNA synthetase (aaRS) scaffolds to tolerate destabilizing mutations required for substrate diversification.
Nikolaj G. Koch, Peter Goettig, Michael A. Nash, Juri Rappsilber, Nediljko Budisa   +4 more
wiley   +1 more source

DCAF13 Safeguards Hematopoietic Stem Cells via RRS1‐Regulated Ribosome Biogenesis

Advanced Science, EarlyView.
This study establishes DCAF13 as an essential regulator for hematopoietic stem cell (HSC) function. Its deletion in mice causes lethal pancytopenia and HSC depletion. Mechanistically, DCAF13 interacts with RRS1 and mediates its non‐degradative K27‐linked ubiquitination, thereby stabilizing RRS1 to maintain ribosome biogenesis and protein translation ...
Mengke Li, Yuxin Wu, Shuai Zhou, Peipei Tang, Jiaming Wei, Ling Liu, Zhenyi Wang, Deyang Shi, Shengnan Yuan, Qingyu Zhang, Shihui Wang, Qing Zhang, Huan Zhao, Rui Zhang, Yingying Wang, Shiwei Yang, Xiangli Chen, Xiaojing Shi, Guangzhi Liu, Yuwei Zhang, Jinming Li, Xu Dong Zhang, Rick F Thorne, Dongping Wei, Zumin Zhu, Song Chen   +25 more
wiley   +1 more source

Combining in silico prediction and ribosome profiling in a genome-wide search for novel putatively coding sORFs [PDF]

, 2013
Background: It was long assumed that proteins are at least 100 amino acids (AAs) long. Moreover, the detection of short translation products (e. g.
Baggerman, Geert, Crappé, Jeroen, Hayakawa, Eisuke, Luyten, Walter, Menschaert, Gerben, Trooskens, Geert, Van Criekinge, Wim   +6 more
core   +2 more sources

rRNA methyltransferases and their role in resistance to antibiotics [PDF]

Journal of Medical Biochemistry, 2010
Methyltransferases (MTases), a large protein superfamily, commonly use S-adenosyl-L-methionine (SAM) as the methyl group donor. SAM-dependant MTases methylate both nucleic acids (DNA, RNA) and proteins, and thus modulate their activity, function and ...
Morić Ivana, Savić Miloje, Ilić-Tomić Tatjana, Vojnović Sandra, Bajkić Sanja, Vasiljević Branka   +5 more
doaj  

Dynamics of ribosomes and release factors during translation termination in E. coli

eLife, 2018
Release factors RF1 and RF2 promote hydrolysis of peptidyl-tRNA during translation termination. The GTPase RF3 promotes recycling of RF1 and RF2. Using single molecule FRET and biochemical assays, we show that ribosome termination complexes that carry ...
Sarah Adio, Heena Sharma, Tamara Senyushkina, Prajwal Karki, Cristina Maracci, Ingo Wohlgemuth, Wolf Holtkamp, Frank Peske, Marina V Rodnina   +8 more
doaj   +1 more source

TRMT6‐Mediated m1A Modification of CDK9 mRNA Is a Dual‐Pronged Pathogenic Driver for HBV‐Related Hepatocellular Carcinoma

Advanced Science, EarlyView.
TRMT6‐mediated m1A modification in CDK9 mRNA enhances its mRNA stability and translation efficiency, thereby increasing the protein levels of CDK9. Upregulated CDK9 promotes the progression of HCC by elevating the levels of oncogenic factors including p‐STAT3, MCL1, and BCL‐2. On the other hand, CDK9 phosphorylates TARDBP at Ser254 to activate HBV core
Rui Zhang, Dandan Zong, Rui Liu, Yubo Wang, Qingqing Gu, Yao Yao, Wenfang Zheng, Mengmeng Yuan, Simeng Wang, Rongrong Cui, Daxu Li, Siwen Dang, Peng Hou   +12 more
wiley   +1 more source

Molecular Simulations of the Ribosome and Associated Translation Factors

, 2014
The ribosome is a macromolecular complex which is responsible for protein synthesis in all living cells according to their transcribed genetic information.
Hamed H. Alsulami (532535), Muhammad Bilal Ashraf (532534), Muhammad Shahab Alhuthali (532536), Tasawar Hayat (433317)   +3 more
core   +6 more sources

Knock-Down of a Novel snoRNA in Tetrahymena Reveals a Dual Role in 5.8S rRNA Processing and Generation of a 26S rRNA Fragment

Biomolecules, 2018
In eukaryotes, 18S, 5.8S, and 28S rRNAs are transcribed as precursor molecules that undergo extensive modification and nucleolytic processing to form the mature rRNA species. Central in the process are the small nucleolar RNAs (snoRNAs).
Kasper L. Andersen, Henrik Nielsen
doaj   +1 more source

EDF1 coordinates cellular responses to ribosome collisions

eLife, 2020
Translation of aberrant mRNAs induces ribosomal collisions, thereby triggering pathways for mRNA and nascent peptide degradation and ribosomal rescue.
Niladri K Sinha, Alban Ordureau, Katharina Best, James A Saba, Boris Zinshteyn, Elayanambi Sundaramoorthy, Amit Fulzele, Danielle M Garshott, Timo Denk, Matthias Thoms, Joao A Paulo, J Wade Harper, Eric J Bennett, Roland Beckmann, Rachel Green   +14 more
doaj   +1 more source

An Artificial Antibody‐Based Toolbox Accelerates Validation of Hidden Microproteins Encoded by the Dark Genome

Advanced Science, EarlyView.
Microproteins are hidden treasures encoded by the “dark proteome” but remain largely underexplored due to the lack of highly efficient tools. We developed a molecularly imprinted polymers (MIPs)‐based toolbox (CLAIMID) to achieve accelerated and ultrasensitive microproteins validation at multiple biological scales (single living cells, cell populations,
Hui He, Anqi Zhang, Zhanchen Guo, Qi Li, Song Gao, Wenyan Guan, Ying Li, Jingran Chen, Sijia Sun, Jian He, Zhen Liu   +10 more
wiley   +1 more source