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Journal Article
Research Support, Non-U.S. Gov't
Review
Structural dynamics of the nuclear pore complex.
Seminars in Cell & Developmental Biology 2017 August
Nuclear pore complexes (NPCs) are the sole conduits that facilitate macromolecular exchange between the nucleus and cytosol. Recent advancements have led to a more highly resolved NPC structure. However, our understanding of the NPC modus operandi that facilitates transport selectivity, and speed, of diverse cargoes remains incomplete. For the most part, assorted cargo-complexes of different sizes traverse the NPC central channel in milliseconds, yet little is known about the nanoscopic movements of its barrier-forming Phe-Gly nucleoporins (FG Nups) and related sub-structures at transport-relevant time and length scales. Here, we discuss how dynamic FG Nup behavior may confer NPCs with an effective permeability barrier according to the functional needs of the cell. Moreover, we postulate that structural flexibility might resonate throughout the NPC framework from the cytoplasmic filaments to the nuclear basket.
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