Structure of the metazoan Nup62.Nup58.Nup54 nucleoporin complex.Structure of the metazoan Nup62.Nup58.Nup54 nucleoporin complex.

Structural highlights

5c3l is a 5 chain structure with sequence from Camelus dromedarius and Xenopus laevis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.9Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

K9ZTJ6_XENLA

Publication Abstract from PubMed

Nuclear pore complexes (NPCs) conduct nucleocytoplasmic transport and gain transport selectivity through nucleoporin FG domains. Here, we report a structural analysis of the FG Nup62*58*54 complex, which is a crucial component of the transport system. It comprises a approximately 13 nm long trimerization interface with an unusual 2W3F coil, a canonical heterotrimeric coiled coil, and a kink that enforces a compact six-helix bundle. Nup54 also contains a ferredoxin-like domain. We further identified a heterotrimeric Nup93-binding module for NPC anchorage. The quaternary structure alternations in the Nup62 complex, which were previously proposed to trigger a general NPC-gating, are incompatible with the trimer structure. We suggest that the highly elongated Nup62 complex projects barrier-forming FG-repeats far into the central NPC channel, supporting a barrier that guards the entire cross-section.

Crystal structure of the metazoan Nup62*Nup58*Nup54 nucleoporin complex.,Chug H, Trakhanov S, Hulsmann BB, Pleiner T, Gorlich D Science. 2015 Aug 20. pii: aac7420. PMID:26292704[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Chug H, Trakhanov S, Hulsmann BB, Pleiner T, Gorlich D. Crystal structure of the metazoan Nup62*Nup58*Nup54 nucleoporin complex. Science. 2015 Aug 20. pii: aac7420. PMID:26292704 doi:http://dx.doi.org/10.1126/science.aac7420

5c3l, resolution 2.90Å

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