6x04
Nup133 (aa55-481) from S. cerevisiae bound by VHH-SAN5
Structural highlights
FunctionNU133_YEAST Functions as a component of the nuclear pore complex (NPC). NPC components, collectively referred to as nucleoporins (NUPs), can play the role of both NPC structural components and of docking or interaction partners for transiently associated nuclear transport factors. NUP133 is involved in nuclear poly(A)+ RNA, tRNA and pre-ribosome export, in GSP1 nuclear import, in NPC assembly and distribution, as well as in nuclear envelope organization.[1] [2] [3] [4] [5] [6] [7] Publication Abstract from PubMedThe hallmark of the eukaryotic cell is the complex endomembrane system that compartmentalizes cellular functions. Transport into and out of the nucleus occurs through the nuclear pore complex (NPC). The heptameric Nup84 or Y complex is an essential scaffolding component of the NPC. Here we report two nanobody-bound structures: the full-length Nup84-Nup133 C-terminal domain complex and the Nup133 N-terminal domain, both from S. cerevisiae. Together with previously published structures, this work enables the structural description of the entire 575 kDa Y complex from one species. The structure of Nup84-Nup133(CTD) details the high flexibility of this dimeric unit of the Y complex. Further, the Nup133(NTD) contains a structurally conserved amphipathic lipid packing sensor motif, confirmed by liposome interaction studies. The presented structures reveal important details about the function of the Y complex that affect our understanding of NPC structure and assembly. Yeast Nup84-Nup133 complex structure details flexibility and reveals conservation of the membrane anchoring ALPS motif.,Nordeen SA, Turman DL, Schwartz TU Nat Commun. 2020 Nov 27;11(1):6060. doi: 10.1038/s41467-020-19885-5. PMID:33247142[8] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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