Results 51 to 60 of about 1,867 (125)

Structural basis of regioselective double halogenation of the β‐carboline tryptoline by the single‐component halogenase AetF

Acta Crystallographica Section D, Volume 82, Issue 7, Page 836-844, July 2026.
A structure of the flavin‐dependent single‐component tryptophan halogenase AetF bound to the non‐native tricyclic substrate tryptoline reveals a binding pose analogous to l‐tryptophan that directs C6‐first halogenation. Product analysis identifies 6,8‐dibromotryptoline as the final product.Flavin‐dependent halogenases (FDHs) offer a biocatalytic route ...
Simon Bork, Hendrik J. Horstmeier, Bjarne Scharkowski, Hartmut H. Niemann   +3 more
wiley   +1 more source

Integrative Insights Into DYRK1A From Molecular Function to Therapeutic Advancement

Chemical Biology &Drug Design, Volume 108, Issue 1, July 2026.
At the center the 3D structure of DYRK1A has been displayed. The dual‐function of DYRK1A involved in cancer and neurodegeneration, i.e., its overexpression drives Down syndrome, neurodegenerative disease etc., and underexpression causes intellectual disability, seizures, etc.
Sampriti Paul, Sonal Dubey, Prashant Tiwari   +2 more
wiley   +1 more source

Racemisation of Amino Acids: From Synthetic Challenge to Biological Significance

ChemBioChem, Volume 27, Issue 11, 15 June 2026.
Racemisation, once considered an undesirable synthetic side reaction, also occurs naturally in amino acids and influences biological processes. Evidence links stereochemical conversion to ageing, protein turnover, and cellular development. This review examines mechanisms, control strategies in synthesis, applications and implications in physiology ...
Othman Al Musaimi
wiley   +1 more source

Innovating Electrosynthesis From Metal Electrodeposition to Organic Chemistry: Deep Eutectic Solvents as Efficient and Sustainable Media

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
This review analyzes deep eutectic solvents (DESs) as efficient media for both organic and inorganic electrosynthesis. The improvements in terms of synthetic opportunities and sustainability are discussed, by exploring the multiple roles of DESs as solvents, electrolytes, and promoters, enabling effective and selective electrosynthesis under mild and ...
Cristiana Margarita, Stefano Nejrotti, Alejandro Leal‐Duaso, Marta Feroci, Alessandra Sanson, Claudia Barolo, Matteo Bonomo   +6 more
wiley   +1 more source

Pd(II)-catalyzed C–H annulation and lactonization of indole-2-carboxamides with hydroxyalkynoates using air as an oxidant

Tetrahedron Chem
A novel palladium(II) catalyzed C–H annulation strategy has been developed for the synthesis of a diverse range of furo[3′,4':5,6]pyrido[3,4-b]indole-1,5(3H)-dione scaffolds. This is the first report on the construction of polycyclic carboline frameworks
Kiran Aswale, Rajashaker Bantu, B. Sridhar, B.V. Subba Reddy   +3 more
doaj   +1 more source

Korean Red Ginseng Attenuates Dysfunctions and Modulates Inflammatory and Neuroplasticity Markers in the Harmaline‐Induced Model of Essential Tremor

Brain and Behavior, Volume 16, Issue 6, June 2026.
Korean red Ginseng significantly reduces tremor severity, improves motor coordination, and ameliorates anxiety and cognitive deficits in a mouse model of essential tremor through suppression of neuroinflammatory markers and normalization of neuroplasticity genes in the cerebellum.
Monavareh Soti, Mehran Ilaghi, Leila Bagherzadeh, Fatemeh Shahsavari, Kristi A. Kohlmeier, Zeynab Pirmoradi, Mohammad Shabani   +6 more
wiley   +1 more source

Foodborne Carcinogens: Formation Pathways, Health Risks, and Cutting‐Edge Physical and Chemical Prevention Strategies

eFood, Volume 7, Issue 3, June 2026.
This review highlights the formation of foodborne carcinogens during processing and evaluates different mitigation strategies, including natural antioxidants and modern cooking techniques, to reduce associated cancer risks and enhance food safety. ABSTRACT Food processing methods, though vital for improving food safety, taste, and shelf life, can ...
Naglaa S. Ashmawy, Ahmed A. Zaky, Noha H. Badr, Ali Korin, Mohamed A. Farag   +4 more
wiley   +1 more source

HETEROCYCLIC SYNTHESIS USING NITRILIMINES: PART 18. SYNTHESIS OF NEW FUSED HETEROCYCLES CONTAINING TRIAZINONE MOIETY

Makara Seri Sains, 2011
A series of new 4,5-dihydro-6-oxo-1,2,4-triazino[4,5-b]1,2,3,4-tetrahydro-β-carbolines were synthesized by the reactionof methyl 1,2,3,4-tetrahydro-β-carboline-3-carboxylate and the appropriate hydrazonoyl halide in presence oftriethylamine.
Hany Mahmod Dalloul
doaj  

Nutritional Composition, Odor‐Contributing Volatile Compounds, and Antioxidant Capacity of the Wild Edible Mushroom Entoloma clypeatum

Food Science &Nutrition, Volume 14, Issue 6, June 2026.
Nutritional composition, free amino acids, fatty acids, minerals, 5′ ‐nucleotides, volatile compounds, and antioxidant activities of Entoloma clypeatum. ABSTRACT Wild mushrooms are increasingly valued in diets for their nutrients and health benefits. The nutritional composition of Entoloma clypeatum, a wild mycorrhizal edible species that grows under ...
Cuiduan Wang, Zhuang Li, Xiaomin Yang, Jianhua Lv, Jinxiu Zhang   +4 more
wiley   +1 more source

Catalytic enantioselective nitrone cycloadditions enabling collective syntheses of indole alkaloids

Nature Communications
Tetrahydro-β-carboline skeletons are prominent and ubiquitous in an extraordinary range of indole alkaloid natural products and pharmaceutical compounds. Powerful synthetic approaches for stereoselective synthesis of tetrahydro-β-carboline skeletons have
Xiaochen Tian, Tengfei Xuan, Jingkun Gao, Xinyu Zhang, Tao Liu, Fengbiao Luo, Ruochen Pang, Pengcheng Shao, Yun-Fang Yang, Yang Wang   +9 more
doaj   +1 more source