1JKG

Structural basis for the recognition of a nucleoporin FG-repeat by the NTF2-like domain of TAP-p15 mRNA nuclear export factor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for the recognition of a nucleoporin FG repeat by the NTF2-like domain of the TAP/p15 mRNA nuclear export factor.

Fribourg, S.Braun, I.C.Izaurralde, E.Conti, E.

(2001) Mol.Cell 8: 645-656

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • TAP-p15 heterodimers have been implicated in the export of mRNAs through nuclear pore complexes (NPCs). We report a structural analysis of the interaction domains of TAP and p15 in a ternary complex with a Phe-Gly (FG) repeat of an NPC component. The ...

    TAP-p15 heterodimers have been implicated in the export of mRNAs through nuclear pore complexes (NPCs). We report a structural analysis of the interaction domains of TAP and p15 in a ternary complex with a Phe-Gly (FG) repeat of an NPC component. The TAP-p15 heterodimer is structurally similar to the homodimeric transport factor NTF2, but unlike NTF2, it is incompatible with either homodimerization or Ran binding. The NTF2-like heterodimer functions as a single structural unit in recognizing an FG repeat at a hydrophobic pocket present only on TAP and not on p15. This FG binding site interacts synergistically with a second site at the C terminus of TAP to mediate mRNA transport through the pore. In general, our findings suggest that FG repeats bind with a similar conformation to different classes of transport factors.


    Organizational Affiliation

    European Molecular Biology Laboratory, Meyerhofstrasse 1, D-69117, Heidelberg, Germany




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
p15
A
140Homo sapiensMutation(s): 0 
Gene Names: NXT1
Find proteins for Q9UKK6 (Homo sapiens)
Go to Gene View: NXT1
Go to UniProtKB:  Q9UKK6
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TAP
B
250Homo sapiensMutation(s): 0 
Gene Names: NXF1 (TAP)
Find proteins for Q9UBU9 (Homo sapiens)
Go to Gene View: NXF1
Go to UniProtKB:  Q9UBU9
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.219 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 104.340α = 90.00
b = 104.340β = 90.00
c = 170.344γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-10-17
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance