Results 121 to 130 of about 107,279 (237)
Advanced Science, EarlyView.Tau populations with different aggregation states associate with distinct sets of proteins in the Alzheimer's disease brain. Proteomic discovery combined with single‐molecule analysis in neurons reveals dynamic associations involving proteostasis, metabolism and RNA biology.
Dorothea Böken +8 more
wiley +1 more source
Janus Reactivity of a Mononuclear Non‐Heme Iron(III)‐Peroxo Complex Toward Indole Oxidation
Angewandte Chemie, EarlyView.The iron(III)‐peroxo complex [FeIII(O2)(12‐TMC)]+ exhibits bifurcating pathways in indole oxidation. N─H indoles undergo N─H H‐atom abstraction, supported by a KIE of 5.2 for N─H/N–D 2,3‐dimethylindoles, whereas N‐methylindoles react via electrophilic addition of the iron‐peroxo group to the C2–C3 double bond of the indole ring, forming iron ...
Wenjuan Zhu +4 more
wiley +2 more sources
Orbital: The Electronic Journal of Chemistry, 2010 Selectivity of alkylation at the N1 position in pyrimidines (thymine and uracil) was achieved by the application of N3-benzoyl thymine and N3-benzoyl uracil as substrates, where the N3 atom was temporarily protected, exposing the N1 atom as the ...
Fábio D. P. Soares +3 more
doaj
Catalytic performance of MCM-22 zeolite for alkylation of toluene with methanol
, 2004 MCM-22 zeolite with mid-strong acidity and openings of 10-membered ring channels may obtain a high catalytic activity and selectivity for alkylation of toluene with methanol.
Kong, DJ +4 more
core +1 more source
Advanced NanoBiomed Research, EarlyView.This study systematically compares small extracellular vesicles (sEVs) derived from four neural cell lines, revealing how cellular origin shapes vesicle biophysical properties and proteomic cargo. Distinct, lineage‐specific signatures linked to neuronal, astrocytic, and microglial functions are identified, highlighting the importance of cell source ...
Muhammad Waqas Salim +4 more
wiley +1 more source
Site‐Specific Protein Bioconjugation Through Cellular Incorporation of Noncanonical Amino Acids
Angewandte Chemie, EarlyView.Genetic code expansion (GCE) enables site‐specific installation of noncanonical amino acids containing bioorthogonal conjugation handles, allowing precise, homogeneous protein modification. This review examines the principles of orthogonal translation, surveys the chemistries available for chemoselective labeling, and highlights emerging multi‐site ...
Rahul Sarkar +2 more
wiley +2 more sources
Angewandte Chemie, EarlyView.Strategic incorporation of unnatural amino acids transforms macrocyclic peptides into drug‐like molecules capable of engaging challenging targets. These building blocks enhance stability, permeability, and bioavailability, accelerating the development of next‐generation peptide therapeutics.
Krishna K. Sharma +5 more
wiley +2 more sources
Cymenes. 1. Modern state of processes for producing cymenes
Тонкие химические технологии, 2012 The article analyzes methods for the preparation of cymenes based on using petrochemical raw materials: toluene and propylene/isopropanol. It is concluded that at present advanced technologies for the production of individual cymenes are absent, and the ...
T. N. Nesterova +5 more
doaj
Beilstein Journal of Organic Chemistry, 2019 4-Oxoquinolines are a class of organic substances of great importance in medicinal chemistry, due to their biological and synthetic versatility. N-1-Alkylated-4-oxoquinoline derivatives have been associated with different pharmacological activities such ...
Pedro N. Batalha +7 more
doaj +1 more source
Cysteine Thioaldehydes: Photolytic Generation, Reactivity, and Biological Implications
Angewandte Chemie, EarlyView.Photolysis of cysteine phenacylsulfides bearing non‐conjugating electron‐withdrawing substituents leads to high conversions into cysteine thioaldehydes through a Norrish type‐II pathway. This methodology enabled the study of the aqueous reactivity of these important biosynthetic intermediates, which, depending on peptide sequence, pH and buffer ...
Ardra Karthika +9 more
wiley +2 more sources