It has been shown that after heating of ACE cells for 15 min at temperature 46 degrees C inhibition of K+-dependent swelling and a sharp decrease of cell resistance and capacity are observed. Changes of the parameters studied were of a threshold pattern, the threshold temperature proved to be uniform and equaled 46 degrees C. It is believed that the temperature relationships obtained point to an important role of barrier functions of cellular membranes in K+-dependent cell swelling.
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PLoS Genet
January 2025
Centre for Immunology and Infection Control, School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD, Australia.
Bacterial polysaccharide synthesis is catalysed on the universal lipid carrier, undecaprenol phosphate (UndP). The cellular UndP pool is shared by different polysaccharide synthesis pathways including peptidoglycan biogenesis. Disruptions in cytosolic polysaccharide synthesis steps are detrimental to bacterial survival due to effects on UndP recycling.
View Article and Find Full Text PDFSupport Care Cancer
January 2025
Albert Einstein College of Medicine/Jacobi Medical Center, Building 1, 3N20, 1400 Pelham Parkway S, Bronx, NY, USA.
Purpose: One in four patients diagnosed with cancer are parents to dependent children. For these patients, childcare services are needed to overcome the time demands of cancer treatment. Despite the childcare support needs and its potential impact on treatment outcomes, targeted childcare services for cancer patients remain limited.
View Article and Find Full Text PDFJ Exp Biol
January 2025
Department of Biological Sciences, University of Alberta, 116 St and 85 Ave, Edmonton, AB T6G 2R3, Canada.
Acidification is a key component of digestion throughout metazoans. The gut digestive fluid of many invertebrates is acidified by the vesicular-type H+-ATPase (VHA). In contrast, vertebrates generate acidic gut fluids using the gastric H+/K+-ATPase (HKA); an evolutionary innovation linked with the appearance of a true stomach that greatly improves digestion, absorption, and immune function.
View Article and Find Full Text PDFRedox Biol
January 2025
University of Chicago, Department of Molecular Genetics and Cell Biology, 929 E. 57th Street, Chicago, IL, 60637, USA. Electronic address:
During its catalytic cycle, the homodimeric ATPase topoisomerase II alpha (TOP2A) cleaves double stranded DNA and remains covalently bound to 5' ends via tyrosine phosphodiester bonds. After passing a second, intact duplex through, TOP2A rejoins the break and releases from the DNA. Thereby, TOP2A can relieve strain accumulated during transcription, replication and chromatin remodeling and disentangle sister chromatids for mitosis.
View Article and Find Full Text PDFInorg Chem
January 2025
NUPOM Lab, Chemistry, School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K.
An understanding of proton transfer and migration at the surfaces of solid metal oxides and related molecular polyoxometalates (POMs) and metal alkoxides is crucial for the development of reactivity involving protonation or the absorption/binding of water. In this work, the hydrolysis of alkoxido Ti- and Sn-substituted Lindqvist [(MeO)MWO] (M = Ti, ; M = Sn, ) and Keggin [(MeO)MPWO] (M = Ti, ; M = Sn, ) type polyoxometalates (POMs) to hydroxido derivatives and subsequent condensation to μ-oxido species has been investigated in detail to provide insight into proton transfer reactions in these molecular metal oxide systems. Solution NMR studies revealed the dependence of reactions not only on the nature of the heteroatom (Ti or Sn) but also on the type of lacunary (W or PW) POM and also on the solvent (MeCN or DMSO).
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