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Measuring RNA residence time within nuclear compartments provides insight into their roles as either storage sites or transient processing hubs. This protocol describes SLAM-RT&Tag, a genomic technique that integrates RNA metabolic labeling with RT&Tag, an RNA proximity labeling method. We detail steps for RNA labeling, library preparation, and computational quantification of T-to-C conversion events to infer RNA dynamics within nuclear compartments in human cell lines. For complete details on the use and execution of this protocol, please refer to Khyzha et al..
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http://dx.doi.org/10.1016/j.xpro.2025.104017 | DOI Listing |
Indian J Nucl Med
August 2025
Department of Radiology, Division of Nuclear Medicine, University of Texas Medical Branch, Galveston, TX, USA.
A 62-year-old woman with chronic nausea and epigastric pain underwent hepatobiliary scintigraphy. Gallbladder ejection fraction (GBEF) calculation suggested normal function. However, upon further review, a septate gallbladder was identified.
View Article and Find Full Text PDFNat Rev Mol Cell Biol
September 2025
Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA.
The defining property of eukaryotic cells is the storage of heritable genetic material in a nuclear compartment. For eukaryotic cells to carry out the myriad biochemical processes necessary for their function, macromolecules must be efficiently exchanged between the nucleus and cytoplasm. The nuclear pore complex (NPC) - which is a massive assembly of ~35 different proteins present in multiple copies totalling ~1,000 protein subunits and architecturally conserved across eukaryotes - establishes a size-selective channel for regulated bidirectional transport of folded macromolecules and macromolecular assemblies across the nuclear envelope.
View Article and Find Full Text PDFEur J Nucl Med Mol Imaging
September 2025
Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.
Purpose: Cardiac noradrenergic denervation visualized by meta-[I]iodobenzylguanidine ([I]MIBG) imaging supports the diagnosis of Parkinson's disease (PD). Recently, meta-[F] fluorobenzylguanidine ([F]MFBG) PET demonstrated favorable imaging characteristics compared with [I]MIBG scintigraphy for neuroendocrine tumors. We assessed [F]MFBG dosimetry and myocardial pharmacokinetics in healthy controls and PD patients.
View Article and Find Full Text PDFAm J Physiol Cell Physiol
September 2025
Institute of Pharmacology and Toxicology, Goethe University Frankfurt, Frankfurt, Germany.
The A20 binding inhibitor of nuclear factor-kappa B (NF-κB)-1 (ABIN-1) serves as a ubiquitin sensor and autophagy receptor, crucial for modulating inflammation and cell death. Our previous in vitro investigation identified the LC3-interacting region (LIR) motifs 1 and 2 of ABIN-1 as key mitophagy regulators. This study aimed to explore the in vivo biological significance of ABIN1-LIR domains using a novel CRISPR-engineered ABIN1-ΔLIR1/2 mouse model, which lacks both LIR motifs.
View Article and Find Full Text PDFMicrobiol Spectr
September 2025
Department of Viral Transformation, Leibniz Institute of Virology (LIV), Martinistraße, Hamburg, Germany.
Unlabelled: Human adenoviruses (HAdVs) induce significant reorganization of the nuclear environment, leading to the formation of virus-induced subnuclear structures known as replication compartments (RCs). Within these RCs, viral genome replication, gene expression, and modulation of cellular antiviral responses are tightly coordinated, making them valuable models for studying virus-host interactions. In a recent study, we analyzed the protein composition of HAdV type 5 (HAdV-C5) RCs isolated from infected primary cells at different time points during infection using quantitative proteomics.
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