Signaling by G protein-coupled receptors (GPCRs) is regulated by temporally distinct processes including receptor desensitization, internalization, and lysosomal sorting, and are tightly controlled by post-translational modifications. While the role of phosphorylation in regulating GPCR signaling is well studied and established, the mechanisms by which other post-translational modifications, such as ubiquitination, regulate GPCR signaling are not clearly defined. We hypothesize that GPCR ubiquitination and deubiquitination is critical for proper signaling and cellular responses.
View Article and Find Full Text PDFIntroduction: Human metabolomics has made significant strides in understanding metabolic changes and their implications for human health, with promising applications in diagnostics and treatment, particularly regarding the gut microbiome. However, progress is hampered by issues with data comparability and reproducibility across studies, limiting the translation of these discoveries into practical applications.
Objectives: This study aims to evaluate the fit-for-purpose of a suite of human stool samples as potential candidate reference materials (RMs) and assess the state of the field regarding harmonizing gut metabolomics measurements.
Biochim Biophys Acta Mol Basis Dis
December 2024
SNCA/PARK1 encodes α-synuclein, which is associated with familial Parkinson's disease. Despite its abundance in presynaptic terminals, the aggregation mechanism of α-synuclein and its relationship with Parkinson's disease have not yet been elucidated. Moreover, the ultrastructures of α-synuclein localization sites in neuronal presynaptic terminals remain unclear.
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