2Y8G

Structure of the Ran-binding domain from human RanBP3 (E352A-R353V double mutant)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.146 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Insights Into the Function of the Crm1 Cofactor Ranbp3 from the Structure of its Ran-Binding Domain

Langer, K.Dian, C.Rybin, V.Muller, C.W.Petosa, C.

(2011) Plos One 6: 17011

  • DOI: 10.1371/journal.pone.0017011
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Proteins bearing a leucine-rich nuclear export signal (NES) are exported from the nucleus by the transport factor CRM1, which forms a cooperative ternary complex with the NES-bearing cargo and with the small GTPase Ran. CRM1-mediated export is regula ...

    Proteins bearing a leucine-rich nuclear export signal (NES) are exported from the nucleus by the transport factor CRM1, which forms a cooperative ternary complex with the NES-bearing cargo and with the small GTPase Ran. CRM1-mediated export is regulated by RanBP3, a Ran-interacting nuclear protein. Unlike the related proteins RanBP1 and RanBP2, which promote disassembly of the export complex in the cytosol, RanBP3 acts as a CRM1 cofactor, enhancing NES export by stabilizing the export complex in the nucleus. RanBP3 also alters the cargo selectivity of CRM1, promoting recognition of the NES of HIV-1 Rev and of other cargos while deterring recognition of the import adaptor protein Snurportin1. Here we report the crystal structure of the Ran-binding domain (RBD) from RanBP3 and compare it to RBD structures from RanBP1 and RanBP2 in complex with Ran and CRM1. Differences among these structures suggest why RanBP3 binds Ran with unusually low affinity, how RanBP3 modulates the cargo selectivity of CRM1, and why RanBP3 promotes assembly rather than disassembly of the export complex. The comparison of RBD structures thus provides an insight into the functional diversity of Ran-binding proteins.


    Organizational Affiliation

    Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RAN-BINDING PROTEIN 3
A, B
138Homo sapiensMutation(s): 2 
Gene Names: RANBP3
Find proteins for Q9H6Z4 (Homo sapiens)
Go to Gene View: RANBP3
Go to UniProtKB:  Q9H6Z4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.61 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.146 
  • Space Group: P 31 2 1
  • Diffraction Data DOI: 
    10.15785/SBGRID/74 SBGrid
Unit Cell:
Length (Å)Angle (°)
a = 61.320α = 90.00
b = 61.320β = 90.00
c = 137.200γ = 120.00
Software Package:
Software NamePurpose
SHELXDphasing
PHENIXrefinement
SHELXEphasing
SCALAdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-02-16
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance