Results 101 to 110 of about 171,220 (334)

RNAase III-Type Enzyme Dicer Regulates Mitochondrial Fatty Acid Oxidative Metabolism in Cardiac Mesenchymal Stem Cells [PDF]

, 2019
Cardiac mesenchymal stem cells (C-MSC) play a key role in maintaining normal cardiac function under physiological and pathological conditions. Glycolysis and mitochondrial oxidative phosphorylation predominately account for energy production in C-MSC ...
Jin, Yue, Kim, Il-man, Shen, Yan, Su, Xuan, Tang, Yaoliang, Weintraub, Neal L.   +5 more
core   +1 more source

Ultrafine Molybdenum Wire Braided Neurointerventional Implants: Bridging Biodegradability and Neurovascular Safety for Stroke Treatment

Advanced Science, EarlyView.
Molybdenum (Mo), with its unique strength, uniform corrosion, and radiopacity, enables innovative biodegradable implants for transformative stroke therapy. Abstract Neurovascular implants for stroke intervention face a critical dilemma: permanent devices (e.g., nitinol stents, platinum coils) often trigger chronic inflammation and recurrence, whereas ...
Yunong Shen, Yiming Huang, Yang Zhang, Chunhao Yu, Hanqi Liu, Dong Bian, Di Wu, Wu Wang, Xunming Ji, Yufeng Zheng, Miaowen Jiang, Ming Li   +11 more
wiley   +1 more source

A Dynamic Gate Enables Regioselective Hydroxylation of Free Arginine by a Non‐Canonical Heme Enzyme

Advanced Science, EarlyView.
The YqcI/YcgG enzyme AglA employs a unique “sandwich” fold and a dynamic gating mechanism to selectively hydroxylate AMPn‐Arg at Nε. Site‐directed mutations reprogram regioselectivity or enable activity on free arginine by altering hydrogen‐bond networks, precisely positioning substrates.
Yuan Sun, Chao Dou, Weizhu Yan, Pengpeng Chen, Lu Zhang, Dan Zhou, Yanhui Zheng, Zhaolin Long, Shoujie Li, Xiaoqing Xu, Qiuxia Huang, Xiaofeng Zhu, Wei Cheng   +12 more
wiley   +1 more source

Protection of the Queuosine Biosynthesis Enzyme QueF from Irreversible Oxidation by a Conserved Intramolecular Disulfide

Biomolecules, 2017
QueF enzymes catalyze the nicotinamide adenine dinucleotide phosphate (NADPH)-dependent reduction of the nitrile group of 7-cyano-7-deazaguanine (preQ0) to 7-aminomethyl-7-deazaguanine (preQ1) in the biosynthetic pathway to the tRNA modified nucleoside ...
Adeba Mohammad, Adriana Bon Ramos, Bobby W. K. Lee, Spencer W. Cohen, Maryam K. Kiani, Dirk Iwata-Reuyl, Boguslaw Stec, Manal A. Swairjo   +7 more
doaj   +1 more source

An Efficient CO2‐Upcycling Platform Based on Engineered Halomonas TD with Enhanced Acetate‐Utilizing Capacity via Adaptive Laboratory Evolution

Advanced Science, EarlyView.
An electrochemical system is designed to convert CO2 into CO2‐derived electrolytes (CDE), mainly containing acetate and formate. The underlying mechanism of acetate metabolism in Halomonas TD80 is explored via ALE. Engineered TD80 produced high‐yield diversified products from CDE.
Chi Wang, Ting‐Ting Chen, Yu‐Jiao Yang, Yu‐Xi Li, Yi‐Xin Chang, Yan‐Chun Xiao, Wen‐Tai Guo, Ye Zheng, Rui‐Zhe Deng, Yu‐Xiang Tian, Wei Situ, Hong‐Wei Shen, Yu Chen, Ya‐Bin Wang, Jie Xing, Hui Wang, Lin Xia, Yi‐Na Lin, Jian‐Wen Ye   +18 more
wiley   +1 more source

Die Funktion des Responseregulators ARR2 in der Entwicklung von Arabidopsis thaliana [PDF]

, 2004
In dieser Arbeit konnte mittels physiologischer Experimente, Expressionsanalysen, Phosphorylierungsassays und Transaktivierungsanalysen eine komplexe Funktion von ARR2 in verschiedenen Signaltransduktionswegen von Arabidopsis aufgedeckt werden.
Haß, Claudia
core  

Integrative Omics Defines Metabolic Biomarkers and Genetic Regulatory Mechanisms of Mortality Risk

Advanced Science, EarlyView.
Understanding mortality mechanisms remains a fundamental challenge. Through multi‐omics analysis of a three‐generation chicken model, are identified 45,585 mQTLs and establish a 16‐metabolite predictor of mortality. An inflammation‐growth trade‐off and evolutionarily conserved pathways involving butyrate–microbiota interactions and L‐cysteine's dual ...
Peihao Liu, Bingxing An, Jumei Zheng, Qiao Wang, Zhirui Yang, Zhengda Li, Dawei Liu, Fan Ying, Jie Wen, Lingzhao Fang, Guiping Zhao   +10 more
wiley   +1 more source

RNAi Regulator C3PO Promotes Arbovirus Infection in Insect Vectors

Advanced Science, EarlyView.
RNA interference (RNAi) is vital for eukaryotes to defend against virus infection. The C3PO complex takes part in RNAi but its role in regulating viral infection remains unclear. This work finds that insect C3PO facilitates arbovirus replication by degrading precursors of miRNAs, especially miR‐971‐3p.
Yan Xiao, Tianyu Guan, Qianfeng Xia, Chen Chen, Qian Wang, Lan Luo, Hong Lu, Feng Cui   +7 more
wiley   +1 more source

Some Like It Hot –Structural Changes in Extremophile Rubredoxin at 120 °C

Angewandte Chemie, EarlyView.
We reveal the high temperature crystal structure of a hyperthermophilic (Pyrococcus furiosus) rubredoxin at 393 K (120 °C), together with multiple complementary structures down to 100 K. The results are compared with molecular dynamics calculations. Significant changes in H‐bonding are observed.
Tzanko Doukov, Igor Leontyev, Francis E. Jenney Jr., Dominic George, Stephen P. Cramer   +4 more
wiley   +2 more sources

A Modular Biosensor Platform for the Detection of Plastic Monomers and the Engineering of Promiscuous Amidases Toward Challenging Substrates

Advanced Science, EarlyView.
A luciferase is used as biosensor for aldehydes, produced enzymatically from different monomeric building blocks of plastics like polyurethanes (PUs). The screening platform is used to monitor esterase, amidase, and urethanase activity and to guide the selection of enzyme variants with improved hydrolytic activities toward difficult to hydrolyze ...
Ina Somvilla, Hannah Meier, Florian Oehlschläger, Hannes Meinert, Lena Koch, Patrick Ihrle, Katharina M. Mehnert, Morten Flieger, Jonas Boß, Marco Seifert, Dominique Böttcher, Uwe T. Bornscheuer, Thomas Bayer   +12 more
wiley   +1 more source