Results 81 to 90 of about 36,659 (205)

Selective [9‐15N] Guanosine for Nuclear Magnetic Resonance Studies of Large Ribonucleic Acids

ChemBioChem, EarlyView.
The small chemical shift anisotropy of nitrogen‐15 at the 9‐position in guanine (15N9‐G) leads to long T2 values and narrow NMR lines, particularly attractive to probe structure and dynamics of large (>200 nucleotide) ribonucleic acids (RNAs). RNAs regulate various cellular processes using malleable 3D structures, and understanding the factors that ...
Solomon K. Attionu, Rita Dill, Michael F. Summers, David A. Case, Jan Marchant, Theodore K. Dayie   +5 more
wiley   +1 more source

Synthesis of 2‐Substituted Adenosine Triphosphate Derivatives and their use in Enzymatic Synthesis and Postsynthetic Labelling of RNA

ChemBioChem, EarlyView.
A series of 2‐substituted adenosine 5′‐O‐triphosphate derivatives is synthesized and tested as substrates for polymerases. In vitro transcription with T7 RNA polymerase, primer extension with engineered DNA polymerases, or 3′‐labelling with poly(A) polymerase are used for enzymatic synthesis of base‐modified RNA.
Ugnė Šinkevičiūtė, Tania Sanchez‐Quirante, Samanta Rožánková, Lenka Poštová Slavětínská, Veronika Raindlová, Michal Hocek   +5 more
wiley   +1 more source

PCFT‐Independent Cellular Uptake of Cyclic Cell‐Penetrating Peptide‐Conjugated Folic Acid

ChemBioChem, EarlyView.
Cell‐penetrating peptide (CPP)‐conjugated folic acid mediates efficient internalization of folic acid that is independent of the presence of proton‐coupled folate transporter (PCFT) on the intestinal cells. CPP‐conjugated folic acid demonstrates superior cellular uptake at all studied pH and in the presence of PCFT inhibitors and shows enhanced ...
Vineet Kumar Mishra, Rheal Towner, Juan Carlos Rodriguez‐Lecompte, Marya Ahmed   +3 more
wiley   +1 more source

Synthesis of Nucleoside Derivatives by Biomimetic Ester Migration

ChemBioChem, Accepted Article.
Modified nucleosides play important roles as agents in medicinal chemistry due to their anti‐inflammatory, antiviral and anti‐proliferative properties, as well as in biochemical processes like protein biosynthesis. Aminoacylated nucleosides in tRNA represent the central transfer unit of amino acids in the biosynthesis of peptides.
Oliver Trapp, Nathalie J. Kurrle, Christoph J. B. Seifert, Nathalie Hampel, Tamara Rauch, Michael Thoma, Luca V. Parziale, Marian S. R. Ebeling, Dino Berthold   +8 more
wiley   +1 more source

CAQ Corner: Basic concepts of transplant immunology

, 2022
Liver Transplantation, EarlyView.
Amanda Cheung, Josh Levitsky
wiley   +1 more source

Organocatalytic Switches of DNA Glycosylase OGG1 Catalyze a Highly Efficient AP‐Lyase Function

Chemistry – A European Journal, EarlyView.
Organocatalytic switches are small molecules that combine active site affinity and a nitrogen‐centered base for catalysis, effectively removing the rate‐determining step of the OGG1 biochemical cascade. Here, we identify a minimal structure and modulate the active nitrogen pKa, enabling the catalysis of ultrafast AP site incisions in a range of pH ...
Mario Kehler, Kaixin Zhou, Aurino M. Kemas, Alicia del Prado, Emma Scaletti Hutchinson, Elinor Hesslefors Nairn, Marek Varga, Yvonne Plattner, Yi Zhong, Oryn Purewal‐Sidhu, James Haslam, Elisée Wiita, Heather Gildie, Karolina Singerova, Zuzanna Szaruga, Ingrid Almlöf, Femke M. Hormann, Kang‐Cheng Liu, Olov Wallner, Florian Ortis, Evert J. Homan, Opher Gileadi, Sean G. Rudd, Pål Stenmark, Miguel de Vega, Thomas Helleday, Nicholas D. D'Arcy‐Evans, Volker M. Lauschke, Maurice Michel   +28 more
wiley   +1 more source

Electron Transport Bilayer Design for Perovskite‐Based Tandem Solar Cells Using Thermal Evaporation

Chemistry–Methods, EarlyView.
We provide a comprehensive explanation of designing a bi‐layer electron transport layer with a fullerene layer using the evaporation method in inverted perovskite solar cells (PSCs) and perovskite‐based tandem solar cells (PTSCs). Furthermore, we provide candidate materials for a bi‐layer and suggest a fullerene/SnO2 bi‐layer configuration for high ...
Siwon Yun, Hyeji Han, Muhammad Adnan, Wonjong Lee, Min Kim, Jongchul Lim, Jinseck Kim   +6 more
wiley   +1 more source

Advances in Isotope Labeling for Solution Nucleic Acid Nuclear Magnetic Resonance Spectroscopy

ChemPlusChem, EarlyView.
Recent advances in the field of nucleic acid nuclear magnetic resonance (NMR) are presented. Stable isotope labeling protocols and new approaches to segmentally label nucleic acid with NMR‐active residues are summarized. The novel methods will have a strong impact on the future of nucleic acid NMR and the characterization of structure and dynamics of ...
Stefan Hilber, Solomon Kojo Attionu, Theodore Kwaku Dayie, Christoph Kreutz   +3 more
wiley   +1 more source

New insight into DNA damage by cisplatin at the atomic scale [PDF]

, 2012
Cisplatin is cis-diamminedichloroplatinum (II) of chemical formula, Pt(NH3)Cl2, abbreviated as cis-DDP and known commercially as platinol. It is used widely as an anticancer drug for various types of cancer, ever since its discovery two centuries ago and
Raji Heyrovska
core   +1 more source

Controlling Lampenflora in Heritage Sites: In Situ Testing of Polyoxometalate–Ionic Liquids in the Pommery Champagne Cellar

ChemPlusChem, EarlyView.
The article evaluates polyoxometalate–ionic liquids (POM–ILs) as biocidal agents against lampenflora in the UNESCO‐listed Pommery Champagne cellar. POM–ILs effectively inhibit microbial colonization over one year with minimal visual impact and outperform the commercial biocide Preventol RI80.
Stéphanie Eyssautier‐Chuine, Ludovic Besaury, Nathalie Vaillant‐Gaveau, Sandra Villaume, Anouck Habrant, Isabel Franco‐Castillo, Marine Rondeau, Dina Aggad, Maxime Gommeaux, Gilles Fronteau, Scott G. Mitchell   +10 more
wiley   +1 more source