Results 121 to 130 of about 99,040 (285)

Covalent Attachment of a Platinum(II) Complex inside DNA Duplexes

ChemistryEurope, EarlyView.
Oxidative addition is used for the site‐specific incorporation of an organometallic PtII complex as an artificial nucleobase into a DNA duplex. The platination stabilizes the duplex and confers it with phosphorescence. An organometallic phosphorescent PtII complex is introduced into DNA duplexes via oxidative addition to a tailor‐made artificial ...
Tim Schäfer, Iván Maisuls, Felix Boisten, Marian Hebenbrock, Alexander Hepp, Cristian A. Strassert, Jens Müller   +6 more
wiley   +1 more source

The parallel accumulation and distribution of two purine-oxidizing enzymes during frog development [PDF]

, 2012
Dennis Barrett
openalex   +1 more source

Caffeine Content Assessment in Beverages and Food Supplements: Regulatory Challenges and Health Implications

ChemFoodChem, EarlyView.
ABSTRACT This study presents an analysis of caffeine content in food supplements and evaluates current regulatory frameworks against established safety guidelines. High‐caffeine products, particularly sports, and food supplements, were assessed for compliance with the safety opinion of the European Food Safety Authority (EFSA). The investigation during
Leonie Rinke, Ann‐Kathrin Kull, Verena Bock, Dirk W. Lachenmeier   +3 more
wiley   +1 more source

From quantum groups to genetic mutations

, 2003
In the framework of the crystal basis model of the genetic code, where each codon is assigned to an irreducible representation of $U_{q \to 0}(sl(2) \oplus sl(2))$, single base mutation matrices are introduced.
Sciarrino, Antonino
core  

Evolved DNAzymes and Stable Activation Chemistry Enable High‐Efficiency DNA Ligation

Chemistry – A European Journal, EarlyView.
In vitro selection of pre‐structured DNA libraries and chemical screening of alternative activation groups yielded trans‐acting DNAzymes with faster ligation rates and enhanced DNA substrate stability. The combination of C3S1 DNAzymes and phosphobenzimidazole‐activated DNA substrates provides improved DNA ligation performance, offering promise for ...
Connor Nurmi, Gemma Mendonsa, Mengdi Bao, Yingfu Li   +3 more
wiley   +1 more source

Purine and carbohydrate availability drive Enterococcus faecalis fitness during wound and urinary tract infections

mBio
Enterococcus faecalis is commonly isolated from a variety of wound types. Despite its prevalence, the pathogenic mechanisms of E. faecalis during wound infection are poorly understood. Using a mouse wound infection model, we performed in vivo E. faecalis
Casandra Ai Zhu Tan, Kelvin Kian Long Chong, Daryl Yu Xuan Yeong, Celine Hui Min Ng, Muhammad Hafiz Ismail, Zhei Hwee Yap, Varnica Khetrapal, Vanessa Shi Yun Tay, Daniela I. Drautz-Moses, Yusuf Ali, Swaine L. Chen, Kimberly A. Kline   +11 more
doaj   +1 more source

Self‐Calibrating Ratiometric DNA Aptamer Probe for Quantitative ATP Imaging in Living Cells

Chemistry – A European Journal, EarlyView.
We developed the RFA–ECHO probe, an internally calibrated ATP sensor that remains responsive across millimolar ATP levels. Its self‐correcting Cy5/ECHO ratio ensures accurate quantification independent of probe uptake. Compared with FRET‐based sensors, it yields a robust ratiometric shift, distinguishing high‐ATP cancer cells from normal ones, enabling
Yunsong Xu, Kunihiko Morihiro, Rui Cong, Samruddhi Maheshwar Patil, Idoia Wille, Akimitsu Okamoto   +5 more
wiley   +1 more source

Editorial: The role of astrocyte signalling pathways in ageing-induced neurodegenerative pathologies

Frontiers in Physiology, 2022
Nady Braidy, Bilal Cig, Bilal Cig, Lin-Hua Jiang, Lin-Hua Jiang, Lin-Hua Jiang, Xinhua Shu, Xinhua Shu   +7 more
doaj   +1 more source

E. coli genetically modified for purine nucleobase release promotes butyrate generation and colonic wound healing during DSS insult

Gut Microbes
The gut microbiota transforms energy stored as undigestible carbohydrates into a remarkable number of metabolites that fuel intestinal bacterial communities and the host tissue.
J. Scott Lee, Daniel J. Kao, Corey S. Worledge, Zachary F. Villamaria, Ruth X. Wang, Nichole M. Welch, Rachael E. Kostelecky, Sean P. Colgan   +7 more
doaj   +1 more source

The Purine‐Nucleotide Cycle [PDF]

, 1980
Juan J. Aragón, John M. Lowenstein
openalex   +1 more source