Journal
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
Volume 11, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2023.1245939
Keywords
nucleocytoplasmic transport; super-resolution light microscopy; nuclear pore complex; transmembrane proteins; intrinsically disordered protein
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The nuclear pore complex (NPC) is a crucial subcellular structure that regulates nucleocytoplasmic transport through a selectively permeable barrier. Recent technological advancements have deepened our understanding of the NPC's architecture and operations. However, the presence of intrinsically disordered regions within nucleoporins (Nups) presents challenges to conventional static characterization techniques. This review provides a comprehensive overview of prominent models that aim to elucidate the structural layout and functional significance of Nups, highlighting their proposed dynamic and structural attributes supported by research.
The nuclear pore complex (NPC) serves as a pivotal subcellular structure, acting as a gateway that orchestrates nucleocytoplasmic transport through a selectively permeable barrier. Nucleoporins (Nups), particularly those containing phenylalanine-glycine (FG) motifs, play indispensable roles within this barrier. Recent advancements in technology have significantly deepened our understanding of the NPC's architecture and operational intricacies, owing to comprehensive investigations. Nevertheless, the conspicuous presence of intrinsically disordered regions within FG-Nups continues to present a formidable challenge to conventional static characterization techniques. Historically, a multitude of strategies have been employed to unravel the intricate organization and behavior of FG-Nups within the NPC. These endeavors have given rise to multiple models that strive to elucidate the structural layout and functional significance of FG-Nups. Within this exhaustive review, we present a comprehensive overview of these prominent models, underscoring their proposed dynamic and structural attributes, supported by pertinent research. Through a comparative analysis, we endeavor to shed light on the distinct characteristics and contributions inherent in each model. Simultaneously, it remains crucial to acknowledge the scarcity of unequivocal validation for any of these models, as substantiated by empirical evidence.
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