Efforts to synthesize potential methionine aminopeptidase inhibitors is described. Preliminary SAR and docking studies served as a guide to design the compound libraries. "Chromatography-free" synthesis of various heterocyclic amides was realized by using a high-load, soluble coupling reagent derived via ring-opening metathesis polymerization (ROMP). Subsequent microwave-assisted Suzuki reactions with ortho-substituted arylboronic acids, followed by chromatographic purification afforded a 55-member library in high yields and purities. While the biological testing was not satisfactory, concurrent X-ray crystallography studies revealed key structural features essential for inhibition of methionine aminopeptidase, which directed fruitful results reported in the accompanying manuscript. In addition, in silico Lipinksi profiles and ADME properties of the library are also reported.
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Front Plant Sci
December 2024
Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy.
Int J Mol Sci
November 2024
Biodiversity and Biotechnology Bionorte Network, Federal University of Para, Belém 66075-110, PA, Brazil.
Naphthoquinones eleutherin and isoeleutherin have demonstrated promising antibacterial activity, probably due to their quinone structure, which can generate reactive oxygen species. The study examines the activities of pathogens, such as and , associated with antimicrobial resistance and explores their potential mechanisms of action. The MIC, IC, and MBC were determined.
View Article and Find Full Text PDFBioorg Chem
November 2024
Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, West Bengal 700054, India. Electronic address:
Recent years have witnessed notable breakthroughs in the field of biotherapeutics. Proteolysis Targeting Chimeras (PROTACs) are novel molecules which used to degrade particular proteins despite the blockage by small drug molecules, which leads to a predicted therapeutic activity. This is a unique finding, especially at the cellular level targets degradations.
View Article and Find Full Text PDFSci Rep
November 2024
Chemistry Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt.
Nosemosis is one of the most devastating diseases of Apis mellifera (Honey bees) caused by the single-celled spore-forming fungi Nosema apis, N. ceranae and N. neumanii, causing a severe loss on the colony vitality and productivity.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
November 2024
Department of Biology, University of Rochester, Rochester, NY 14627.
Within a cell, protein-bound methionines can be chemically or enzymatically oxidized, and subsequently reduced by methionine sulfoxide reductases (Msrs). Methionine oxidation can result in structural damage or be the basis of functional regulation of enzymes. In addition to participating in redox reactions, methionines play an important role as the initiator residue of translated proteins where they are commonly modified at their α-amine group by formylation or acetylation.
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