3GJX

Crystal Structure of the Nuclear Export Complex CRM1-Snurportin1-RanGTP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.244 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal Structure of the Nuclear Export Receptor CRM1 in Complex with Snurportin1 and RanGTP.

Monecke, T.Guttler, T.Neumann, P.Dickmanns, A.Gorlich, D.Ficner, R.

(2009) Science --: --

  • DOI: 10.1126/science.1173388

  • PubMed Abstract: 
  • CRM1 mediates nuclear export of numerous unrelated cargoes, which may carry a short leucine-rich nuclear export signal or export signatures that include folded domains. How CRM1 recognizes such a variety of cargoes has been unknown up to this point. ...

    CRM1 mediates nuclear export of numerous unrelated cargoes, which may carry a short leucine-rich nuclear export signal or export signatures that include folded domains. How CRM1 recognizes such a variety of cargoes has been unknown up to this point. Here we present the crystal structure of the SPN1.CRM1.RanGTP export complex at 2.5 angstrom resolution (where SPN1 is snurportin1 and RanGTP is guanosine 5' triphosphate-bound Ran). SPN1 is a nuclear import adapter for cytoplasmically assembled, m(3)G-capped spliceosomal U snRNPs (small nuclear ribonucleoproteins). The structure shows how CRM1 can specifically return the cargo-free form of SPN1 to the cytoplasm. The extensive contact area includes five hydrophobic residues at the SPN1 amino terminus that dock into a hydrophobic cleft of CRM1, as well as numerous hydrophilic contacts of CRM1 to m(3)G cap-binding domain and carboxyl-terminal residues of SPN1. The structure suggests that RanGTP promotes cargo-binding to CRM1 solely through long-range conformational changes in the exportin.


    Organizational Affiliation

    Abteilung für Molekulare Strukturbiologie, Institut für Mikrobiologie und Genetik, GZMB, Georg-August-Universität Göttingen, Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Snurportin-1
B, E
365Homo sapiensGene Names: SNUPN (RNUT1, SPN1)
Find proteins for O95149 (Homo sapiens)
Go to Gene View: SNUPN
Go to UniProtKB:  O95149
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
GTP-binding nuclear protein Ran
C, F
216Homo sapiensGene Names: RAN (ARA24)
Find proteins for P62826 (Homo sapiens)
Go to Gene View: RAN
Go to UniProtKB:  P62826
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Exportin-1
A, D
1073Mus musculusGene Names: Xpo1 (Crm1)
Find proteins for Q6P5F9 (Mus musculus)
Go to UniProtKB:  Q6P5F9
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

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Download CCD File 
B, E
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
GTP
Query on GTP

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Download CCD File 
C, F
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
 Ligand Interaction
CL
Query on CL

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E
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

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C, F
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.244 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 72.173α = 90.00
b = 225.738β = 100.56
c = 163.451γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
REFMACrefinement
PHENIXrefinement
XSCALEdata scaling
XDSdata reduction
PHASERphasing
MAR345dtbdata collection

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-05-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance