4KF7

Nup188(aa1-1160) from Myceliophthora thermophila


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Scaffold nucleoporins Nup188 and Nup192 share structural and functional properties with nuclear transport receptors.

Andersen, K.R.Onischenko, E.Tang, J.H.Kumar, P.Chen, J.Z.Ulrich, A.Liphardt, J.T.Weis, K.Schwartz, T.U.

(2013) Elife 2: e00745-e00745

  • DOI: 10.7554/eLife.00745
  • Primary Citation of Related Structures:  4KF8

  • PubMed Abstract: 
  • Nucleocytoplasmic transport is mediated by nuclear pore complexes (NPCs) embedded in the nuclear envelope. About 30 different proteins (nucleoporins, nups) arrange around a central eightfold rotational axis to build the modular NPC. Nup188 and Nup192 ...

    Nucleocytoplasmic transport is mediated by nuclear pore complexes (NPCs) embedded in the nuclear envelope. About 30 different proteins (nucleoporins, nups) arrange around a central eightfold rotational axis to build the modular NPC. Nup188 and Nup192 are related and evolutionary conserved, large nucleoporins that are part of the NPC scaffold. Here we determine the structure of Nup188. The protein folds into an extended stack of helices where an N-terminal 130 kDa segment forms an intricate closed ring, while the C-terminal region is a more regular, superhelical structure. Overall, the structure has distant similarity with flexible S-shaped nuclear transport receptors (NTRs). Intriguingly, like NTRs, both Nup188 and Nup192 specifically bind FG-repeats and are able to translocate through NPCs by facilitated diffusion. This blurs the existing dogma of a clear distinction between stationary nups and soluble NTRs and suggests an evolutionary relationship between the NPC and the soluble nuclear transport machinery. DOI:http://dx.doi.org/10.7554/eLife.00745.001.


    Organizational Affiliation

    Department of Biology , Massachusetts Institute of Technology , Cambridge , United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nup188
A
1160Myceliophthora thermophila (strain ATCC 42464 / BCRC 31852 / DSM 1799)N/A
Find proteins for G2QD05 (Myceliophthora thermophila (strain ATCC 42464 / BCRC 31852 / DSM 1799))
Go to UniProtKB:  G2QD05
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.181 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 169.028α = 90.00
b = 94.773β = 98.94
c = 91.635γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
PHENIXrefinement
SHELXSphasing
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-06-19
    Type: Initial release
  • Version 1.1: 2013-08-14
    Type: Database references