Results 51 to 60 of about 43,569 (363)

Solution-based alkyne-azide coupling on functionalized Si(001) prepared under UHV conditions [PDF]

arXiv, 2020
Synthesis of organic bi-layers on silicon was realized by a combination of surface functionalization under ultra-high vacuum (UHV) conditions and solution-based click chemistry. The silicon (001) surface was prepared with a high degree of perfection in UHV and functionalized via chemoselective adsorption of ethinyl cyclopropyl cyclooctyne from the gas ...
arxiv  

MET variants with activating N‐lobe mutations identified in hereditary papillary renal cell carcinomas still require ligand stimulation

Molecular Oncology, EarlyView.
MET variants in the N‐lobe of the kinase domain, found in hereditary papillary renal cell carcinoma, require ligand stimulation to promote cell transformation, in contrast to other RTK variants. This suggests that HGF expression in the microenvironment is important for tumor growth in such patients. Their sensitivity to MET inhibitors opens the way for
Célia Guérin, Audrey Vinchent, Marie Fernandes, Isabelle Damour, Agathe Laratte, Rémi Tellier, Gabriella O. Estevam, Jean‐Pascal Meneboo, Céline Villenet, Clotilde Descarpentries, James S. Fraser, Martin Figeac, Alexis B. Cortot, Etienne Rouleau, David Tulasne   +14 more
wiley   +1 more source

Construction of Benzenesulfonamide Derivatives via Copper and Visible Light-induced Azides and S(O)₂–H Coupling

Molecules, 2022
We here have developed an S(O)2–N coupling between phenylsulfinic acid derivatives and aryl azides by dual copper and visible light catalysis. In this efficient and mild pathway, the reaction produces sulfonamide compounds under redox-neutral condition ...
Zhipeng Liang, Ya-Nan Wu, Yang Wang
doaj   +1 more source

Cross-Correlated Motions in Azidolysozyme [PDF]

arXiv, 2021
The changes in the local and global dynamics of azide-labelled Lysozyme compared with that of the wild type protein are quantitatively assessed for all alanine residues along the polypeptide chain. Although attaching -N$_3$ to alanine residues has been considered to be a minimally invasive change in the protein it is found that depending on the ...
arxiv  

Core-Clickable PEG-Branch-Azide Bivalent-Bottle-Brush Polymers by ROMP: Grafting-Through and Clicking-To [PDF]

, 2011
The combination of highly efficient polymerizations with modular "click" coupling reactions has enabled the synthesis of a wide variety of novel nanoscopic tructures.
Burts, Alan O., Finn, M. G., Grubbs, Robert H., Johnson, Jeremiah A., Koberstein, Jeffrey T., Lim, Yeon-Hee, Lu, Ying Y., Tirrell, David A., Turro, Nicholas J.   +8 more
core   +2 more sources

Respiratory complex I‐mediated NAD+ regeneration regulates cancer cell proliferation through the transcriptional and translational control of p21Cip1 expression by SIRT3 and SIRT7

Molecular Oncology, EarlyView.
NAD+ regeneration by mitochondrial complex I NADH dehydrogenase is important for cancer cell proliferation. Specifically, NAD+ is necessary for the activities of NAD+‐dependent deacetylases SIRT3 and SIRT7, which suppress the expression of p21Cip1 cyclin‐dependent kinase inhibitor, an antiproliferative molecule, at the translational and transcriptional
Masato Higurashi, Kazunori Mori, Hidetsugu Nakagawa, Momoko Uchida, Fumihiro Ishikawa, Motoko Shibanuma   +5 more
wiley   +1 more source

3,​3-​dichloro-​1,​2-​diphenylcyclopropene (CPICl)​-​mediated synthesis of Nα-​protected amino acid azides and α-​ureidopeptides [PDF]

, 2014
Rapid synthesis of acid azides via in situ generation of acid chlorides using CPICl as chlorinating agent from the corresponding Nα -protected amino acids is described.
Madhu, C., Nageswara Rao Panguluri, ., Samarasimhareddy, M., Vommina, V.S.   +3 more
core   +4 more sources

A detailed study on understanding glycopolymer library and Con A interactions [PDF]

, 2013
Synthetic glycopolymers are important natural oligosaccharides mimics for many biological applications. To develop glycopolymeric drugs and therapeutic agents, factors that control the receptor-ligand interaction need to be investigated.
Becer, C. Remzi, Burns, James A., Geng, Jin, Gou, Yanzi, Haddleton, David M., Richards, Sarah-Jane   +5 more
core   +1 more source

Regulating Protein Immobilization During Cell‐Free Protein Synthesis in Hyaluronan Microgels

Advanced Biology, EarlyView.
Bifunctional microgels carrying a linear DNA template and Ni2+‐activated NTA moieties are used as platform for cell‐free protein synthesis and in situ protein immobilization. By varying the concentration of NTA moieties in the microgels, the amount of GFP‐His immobilized inside the microgel and released to the microgel environment can be regulated ...
Anika Kaufmann, Kateryna Ivanova, Julian Thiele   +2 more
wiley   +1 more source

A construction of 4,4-spirocyclic γ-lactams by tandem radical cyclization with carbon monoxide

Beilstein Journal of Organic Chemistry, 2013
A straightforward synthesis of 4,4-spirocyclic indol γ-lactams by tandem radical cyclization of iodoaryl allyl azides with CO was achieved. The reaction of iodoaryl allyl azides, TTMSS and AIBN under CO pressure (80 atm) in THF at 80 °C gave the desired ...
Mitsuhiro Ueda, Yoshitaka Uenoyama, Nozomi Terasoma, Shoko Doi, Shoji Kobayashi, Ilhyong Ryu, John A. Murphy   +6 more
doaj   +1 more source