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Interaction of cardiac leiomodin with the native cardiac thin filament.
PLoS Biol
January 2025
Department of Biomedical and Translational Sciences, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, Virginia, United States of America.
Every heartbeat depends on cyclical contraction-relaxation produced by the interactions between myosin-containing thick and actin-based thin filaments (TFs) arranged into a crystalline-like lattice in the cardiac sarcomere. Therefore, the maintenance of thin filament length is crucial for myocardium function. The thin filament is comprised of an actin backbone, the regulatory troponin complex and tropomyosin that controls interactions between thick and thin filaments.
View Article and Find Full Text PDFExploring the Role of TRAF6-TAK1 Pathway in Podocyte Pyroptosis and Its Implications for Primary Membranous Nephropathy Therapy.
Inflammation
January 2025
Department of Nephrology, the First Affiliated Hospital of Bengbu Medical University, No. 287, Changhuai Road, Longzihu District, Bengbu, 233000, Anhui Province, China.
Primary membranous nephropathy (PMN) is a prevalent renal disorder characterized by immune-mediated damage to the glomerular basement membrane, with recent studies highlighting the significant role of pyroptosis in its progression. In this study, we investigate the molecular mechanisms underlying PMN, focusing on the role of Tumor necrosis factor receptor-associated factor 6 (TRAF6) in promoting disease advancement. Specifically, we examine how TRAF6 facilitates PMN progression by inducing the ubiquitination of Transforming growth factor-beta-activated kinase 1 (TAK1), which in turn activates the Gasdermin D (GSDMD)/Caspase-1 axis, leading to podocyte pyroptosis.
View Article and Find Full Text PDFThe histone demethylase KDM5C enhances the sensitivity of acute myeloid leukemia cells to lenalidomide by stabilizing cereblon.
Cell Mol Biol Lett
January 2025
Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou Key Laboratory of Drug Research for Prevention and Treatment of Hyperlipidemic Diseases, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
Background: The protein cereblon (CRBN) mediates the antileukemia effect of lenalidomide (Len). Len binds to CRBN, recruits IKZF1/IKZF3, and promotes their ubiquitination and degradation, through which Len exhibits its antileukemia and antimyeloma activity. Therefore, the protein level of CRBN might affect the antiproliferative effect of Len.
View Article and Find Full Text PDFQuinone extraction drives atmospheric carbon monoxide oxidation in bacteria.
Nat Chem Biol
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Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.
Diverse bacteria and archaea use atmospheric CO as an energy source for long-term survival. Bacteria use [MoCu]-CO dehydrogenases (Mo-CODH) to convert atmospheric CO to carbon dioxide, transferring the obtained electrons to the aerobic respiratory chain. However, it is unknown how these enzymes oxidize CO at low concentrations and interact with the respiratory chain.
View Article and Find Full Text PDFIntegrative in silico and biochemical analyses demonstrate direct Arl3-mediated ODA16 release from the intraflagellar transport machinery.
J Biol Chem
January 2025
Department of Molecular Biology and Genetics, Aarhus University, Universitetsbyen 81, 8000 Aarhus C, Denmark. Electronic address:
Outer dynein arms (ODAs) are essential for ciliary motility and are preassembled in the cytoplasm before trafficking into cilia by intraflagellar transport (IFT). ODA16 is a key adaptor protein that links ODAs to the IFT machinery via a direct interaction with the IFT46 protein. However, the molecular mechanisms regulating the assembly, transport, and release of ODAs remain poorly understood.
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