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The subcellular compartment-specific molecular interactions (SCSIs) are the building blocks for most molecular functions, biological processes and disease pathogeneses. Extensive experiments have therefore been conducted to accumulate the valuable information of SCSIs, but none of the available databases has been constructed to describe those data. In this study, a novel knowledge base SubCELL is thus introduced to depict the landscape of SCSIs among DNAs/RNAs/proteins. This database is UNIQUE in (a) providing, for the first time, the experimentally-identified SCSIs, (b) systematically illustrating a large number of SCSIs inferred based on well-established method and (c) collecting experimentally-determined subcellular locations for the DNAs/RNAs/proteins of diverse species. Given the essential physiological/pathological role of SCSIs, the SubCELL is highly expected to have great implications for modern molecular biological study, which can be freely accessed with no login requirement at: https://idrblab.org/subcell/.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11701543 | PMC |
http://dx.doi.org/10.1093/nar/gkae863 | DOI Listing |
Bio Protoc
August 2025
Deptartment of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.
Protein synthesis and degradation (i.e., turnover) forms an important part of protein homeostasis and has been implicated in many age-associated diseases.
View Article and Find Full Text PDFRNA modifications, especially m6A in human mRNA, are believed to be dynamically regulated through RNA writers and erasers. The key eraser of m6A is ALKBH5 with its function well proven in vitro, while in vivo evidence is lacking. Here, we set out to exploit nucleic acid isotope labelling coupled mass spectrometry (NAIL-MS) in a pulse chase set-up to study the in vivo function of ALKBH5 on human RNAs.
View Article and Find Full Text PDFProc Biol Sci
July 2025
Temerty Centre for Artificial Intelligence Research and Education in Medicine, University of Toronto, Toronto, Ontario, Canada.
Neurons and their subcellular compartments exhibit distinct forms of excitability. In 1948, Alan Hodgkin described different classes of neuronal excitability, each characterized by unique spiking responses to a constant stimulus. Despite these early insights, the mechanisms by which membrane properties influence spike initiation and excitability remain poorly understood.
View Article and Find Full Text PDFBiomed Pharmacother
August 2025
Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan. Electronic address:
TRPML2 is an endolysosomal calcium-permeable channel gated by phosphatidylinositol 3,5-bisphosphate (PI(3,5)P₂). However, its subcellular localization and functional contribution to compartment-specific vesicle trafficking remain incompletely defined. In this study, we identify Rab4-positive recycling endosomes as a key site of TRPML2 activity and regulation.
View Article and Find Full Text PDFSci Adv
June 2025
Department of Molecular Biology, Princeton University, 119 Lewis Thomas Laboratory, Princeton, NJ 08544, USA.
Viruses exploit host cell reliance on compartmentalization to facilitate their replication. Herpes simplex virus type 1 (HSV-1) modulates the subcellular localization of host proteins to suppress immune activation, license viral gene expression, and achieve translational shutoff. To spatially resolve dynamic protein-protein interaction (PPI) networks during infection with an immunostimulatory HSV-1 strain, we integrated nuclear/cytoplasmic fractionation with thermal proximity coaggregation analysis (N/C-TPCA).
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