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Comprehensive Chemical Analysis of the Methyl 3-Nitrogen-2,3-Dideoxysaccharides Derivatives with d--Configuration: Synthesis, Reactivity of HIV-1 Reverse Transcriptase Inhibitors.
J Phys Chem B
January 2025
Intermolecular Interaction Laboratory, Department of Bioinorganic Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
This study extends previous research, particularly focusing on patented scientific objects No. ID: PL 240 353 B1, investigating the physicochemical properties of the methyl 3-azido- and 3-amino-2,3-dideoxysaccharides with a nucleoside scaffold similar to 3'-azidothymidine (AZT). The study utilizes multiwavelength spectrophotometric and potentiometric methods to evaluate the ionization of the saccharide units in aqueous solutions.
View Article and Find Full Text PDFRoles of oolong tea extracts in the protection against Staphylococcus aureus infection in Caenorhabditis elegans.
J Food Sci
January 2025
Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China.
Oolong tea, a popular traditional Chinese tea, possesses various bioactivities, but little is known about its roles in the protection against pathogens, such as Staphylococcus aureus, in vivo. This study investigated the roles of the water-soluble oolong tea extracts (OTE) on S. aureus infection in Caenorhabditis elegans, a promising model to study the host-microbe interactions in vivo.
View Article and Find Full Text PDFBinuclear ruthenium complex linker length tunes DNA threading intercalation kinetics.
Biophys J
January 2025
Department of Physics, Northeastern University, Boston, MA, 02115, USA. Electronic address:
Binuclear ruthenium complexes have been investigated for potential DNA-targeted therapeutic and diagnostic applications. Studies of DNA threading intercalation, in which DNA base pairs must be broken for intercalation, have revealed means of optimizing a model binuclear ruthenium complex to obtain reversible DNA-ligand assemblies with the desired properties of high affinity and slow kinetics. Here, we used single-molecule force spectroscopy to study a binuclear ruthenium complex with a longer semi-rigid linker relative to the model complex.
View Article and Find Full Text PDFCu2+ mediates the oxidation of the transcription factor MscA to regulate the antioxidant defense of mycobacteria.
Nucleic Acids Res
January 2025
State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China.
Copper (Cu), a trace element with redox activity, is both essential and toxic to living organisms. Its redox properties make it a cofactor for a variety of proteins, but it also causes oxidative stress, hence the need to maintain intracellular copper homeostasis. However, the role of copper in the regulation of antioxidant defense in bacteria remains unclear, and the involved transcription factors remain to be explored.
View Article and Find Full Text PDFDiminished DNA binding affinity of DMRT1 caused by heterozygous DM domain mutations is a cause of male infertility.
Hum Mol Genet
January 2025
Genom Ltd., Ilica 190, Zagreb 10000, Croatia.
The most severe form of male infertility is idiopathic non-obstructive azoospermia (NOA), a complete sperm absence in the ejaculate. We performed exome sequencing in the Croatian infertile brothers with NOA and found a variant in DMRT1 (Doublesex and mab-3 related transcription factor 1) gene that was further assessed by the EMSA assay and molecular dynamic simulations. We additionally screened for DMRT1 mutations in 1940 infertile men diagnosed with spermatogenic failure, 644 normozoospermic controls, and 105 females with primary ovarian insufficiency (POI) recruited to the GEnetics of Male INfertility Initiative (GEMINI) or Estonian Andrology (ESTAND) cohorts.
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