Results 111 to 120 of about 188,713 (272)

Red Blood Cell Adenylate Energetics Is Related to Endothelial and Microvascular Function in Long COVID

open access: yesBiomedicines
Adenine nucleotides play a critical role in maintaining essential functions of red blood cells (RBCs), including energy metabolism, redox status, shape fluctuations and RBC-dependent endothelial and microvascular functions.
Marzena Romanowska-Kocejko   +9 more
doaj   +1 more source

A Michaelis‐Arbuzov‐Type Pathway to a Protected 2ʹ‐Deoxy‐2ʹ‐Selenomethyl‐Adenosine‐3ʹ,5ʹ‐Phosphoroselenolate Guanosine Dinucleotide for Use in Modified m7G Cap Synthesis

open access: yesChemistry – A European Journal, EarlyView.
Here we report a synthesis of the dinucleotide 4 for a projected future total synthesis of the m7G cap 1. Highlights of the route include: 1) a 3ʹ‐H‐phosphonate/5ʹ‐selenocyanate Michaelis‐Arbuzov coupling to forge the 3ʹ,5ʹ‐phosphoroselenolate; 2) an Amosova reductive selenomethylation to install the 2ʹ‐SeMe; 3) a solid CPR II 5ʹ‐O‐phosphitylation; and
K. Lawrence E. Hale   +2 more
wiley   +1 more source

The tumour metabolism inhibitors GSAO and PENAO react with cysteines 57 and 257 of mitochondrial adenine nucleotide translocase

open access: yesCancer Cell International, 2012
Background GSAO (4-(N-(S-glutathionylacetyl)amino) phenylarsonous acid) and PENAO (4-(N-(S-penicillaminylacetyl)amino) phenylarsonous acid) are tumour metabolism inhibitors that target adenine nucleotide translocase (ANT) of the inner-mitochondrial ...
Park Danielle   +4 more
doaj   +1 more source

Recent Advances in Chemical Probing Strategies for RNA Structure Determination in Vivo

open access: yesChemistry – A European Journal, EarlyView.
This Review illustrates how structural probes combined with advanced sequencing technologies are revolutionizing our ability to map RNA structures and interactions within living cells. It highlights the development of innovative strategies tailored to probe RNA structures in particular biological contexts.
Maryana Yarshova   +2 more
wiley   +1 more source

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

open access: yesChemistry – 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   +5 more
wiley   +1 more source

Control of ATP homeostasis during the respiro‐fermentative transition in yeast

open access: yesMolecular Systems Biology, 2010
Respiring Saccharomyces cerevisiae cells respond to a sudden increase in glucose concentration by a pronounced drop of their adenine nucleotide content ([ATP]+[ADP]+[AMP]=[AXP]).
Thomas Walther   +6 more
doaj   +1 more source

Bottom‐up Strategies for Generating Polymer Protocells That Mimic Cellular Communication

open access: yesChemistry – A European Journal, EarlyView.
This review focuses on polymeric protocells produced using a bottom‐up approach. Polymer‐based assemblies guarantee stability and designability by adjusting the properties of the amphiphilic copolymers used. The review covers protocell architectures, production, and their intra‐ and intercellular communication mechanisms.
Gloria Saorin   +3 more
wiley   +1 more source

A single nucleotide polymorphism produces different transcription profiles in Campylobacter jejuni’s cysM

open access: yesFrontiers in Microbiology
A single nucleotide polymorphism (SNP) in the 126 bp untranslated region (UTR) directly upstream of Campylobacter jejuni’s cysM (cysteine synthase) results in significant effects on gene transcription.
Nereus W. Gunther IV   +6 more
doaj   +1 more source

Thermodynamic and kinetic insights into stop codon recognition by release factor 1. [PDF]

open access: yes, 2014
Stop codon recognition is a crucial event during translation termination and is performed by class I release factors (RF1 and RF2 in bacterial cells). Recent crystal structures showed that stop codon recognition is achieved mainly through a network of ...
Joseph, Simpson   +2 more
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