1,700+ technical articles by Aladdin Scientific's scientists on reagent selection, reaction mechanisms, assay design and formulation. New every week.
Inflammasomes are important cytoplasmic signaling complexes of the innate immune system that sense infection, cellular injury, and metabolic abnormalities. They activate inflammatory Caspases, promote the maturation of IL-1β and IL-18, and drive Gasdermin-mediated pyroptosis. Inflammasomes such ...
Ergothioneine (L-ergothioneine, EGT) is a sulfur-containing derivative of L-histidine. The ergothioneine biosynthetic systems identified to date are found primarily in certain bacteria and fungi. No corresponding complete de novo biosynthetic pathway has been identified in humans, and ...
In practice, however, the reaction involves two independent issues. First, the hydroxyl group itself is not a good leaving group, and the reactivity of the oxygen-containing functional group must therefore be modified before substitution can occur. Second, the nucleophilicity of fluoride is ...
Forehead lines, glabellar lines, and crow’s feet are commonly associated with repeated facial expressions. When a person frowns, raises the eyebrows, or squints, contraction of the facial expression muscles pulls on the overlying skin, causing it to fold repeatedly along relatively fixed ...
In the 1970s, researchers isolated the extremely halophilic phototrophic bacterium Ectothiorhodospira halochloris from highly saline and alkaline soda lakes in Egypt. In 1985, Galinski et al. isolated and identified a cyclic amino acid derivative from halophilic bacteria of this genus and named ...
Proline and its derivatives are widely found in small-molecule drugs, peptidomimetics, and therapeutic peptides. Recent medicinal chemistry studies have shown that structures such as 4-fluoroproline, 4-(trifluoromethyl)proline, α-substituted proline, and bicyclic proline can alter molecular ...
The classical Mitsunobu reaction can activate alcohols under relatively mild conditions and form new C—N, C—O, or C—S bonds through nucleophilic substitution. With suitable chiral secondary alcohols, the reaction is generally accompanied by inversion of configuration. It is therefore ...
Cuproptosis is a form of regulated cell death triggered by abnormal intracellular copper accumulation. Its core mechanism is not lipid peroxidation or a Caspase cascade but the binding of copper to lipoylated proteins in the mitochondrial tricarboxylic acid cycle, which induces abnormal protein ...
Piperidine is a common saturated nitrogen-containing heterocycle in drug molecules. It can control the spatial positioning of substituents and can also participate in salt bridges, hydrogen bonding, and solvation through its protonatable nitrogen atom. When piperidine is replaced with another ...
