6X2P

Crystal Structure of the Mek1NES peptide bound to CRM1

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history. 


Literature

Recognition of nuclear export signals by CRM1 carrying the oncogenic E571K mutation.

Baumhardt, J.M., Walker, J.S., Lee, Y., Shakya, B., Brautigam, C.A., Lapalombella, R., Grishin, N., Chook, Y.M.

(2020) Mol Biol Cell 31: 1879-1891

  • DOI: 10.1091/mbc.E20-04-0233
  • Primary Citation of Related Structures:  
    6X2M, 6X2O, 6X2P, 6X2R, 6X2S, 6X2U, 6X2V, 6X2W, 6X2X, 6X2Y

  • PubMed Abstract: 

    • The E571K mutation of CRM1 is highly prevalent in some cancers, but its mechanism of tumorigenesis is unclear. Glu571 of CRM1 is located in its nuclear export signal (NES)-binding groove, suggesting that binding of select NESs may be altered. We generated HEK 293 cells with either monoallelic CRM1WT/E571K or biallelic CRM1E571K/E571K using CRISPR/Cas9 ...

    The E571K mutation of CRM1 is highly prevalent in some cancers, but its mechanism of tumorigenesis is unclear. Glu571 of CRM1 is located in its nuclear export signal (NES)-binding groove, suggesting that binding of select NESs may be altered. We generated HEK 293 cells with either monoallelic CRM1WT/E571K or biallelic CRM1E571K/E571K using CRISPR/Cas9. We also combined analysis of binding affinities and structures of 27 diverse NESs for wild-type and E571K CRM1 with structure-based bioinformatics. While most NESs bind the two CRM1 similarly, NESs from Mek1, eIF4E-transporter, and RPS2 showed >10-fold affinity differences. These NESs have multiple charged side chains binding close to CRM1 position 571, but this feature alone was not sufficient to predict different binding to CRM1(E571K). Consistent with eIF4E-transporter NES binding weaker to CRM1(E571K), eIF4E-transporter was mislocalized in tumor cells carrying CRM1(E571K). This serves as proof of concept that understanding how CRM1(E571K) affects NES binding provides a platform for identifying cargoes that are mislocalized in cancer upon CRM1 mutation. Finally, we showed that large affinity changes seen with some NES peptides (of Mek1 and RPS2) do not always translate to the full-length cargoes, suggesting limitations with current NES prediction methods. Therefore, comprehensive studies like ours are imperative to identify CRM1 cargoes with real pathogenic potential.

    Organizational Affiliation: 

    Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GTP-binding nuclear protein RanA216Homo sapiensMutation(s): 0 
Gene Names: RAN, ARA24, OK/SW-cl.81
UniProt & NIH Common Fund Data Resources
Find proteins for P62826 (Homo sapiens)
Explore P62826 
Go to UniProtKB:  P62826
PHAROS:  P62826
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62826
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Ran-specific GTPase-activating protein 1B140Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: YRB1, CST20, HTN1, SFO1, YDR002W, YD8119.08
UniProt
Find proteins for P41920 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P41920 
Go to UniProtKB:  P41920
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP41920
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Exportin-1C1024Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: CRM1, KAP124, XPO1, YGR218W, G8514
UniProt
Find proteins for P30822 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P30822 
Go to UniProtKB:  P30822
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP30822
Protein Feature View
Expand
  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Dual specificity mitogen-activated protein kinase kinase 1D17Homo sapiensMutation(s): 0 
Gene Names: MAP2K1, MEK1, PRKMK1
EC: 2.7.12.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q02750 (Homo sapiens)
Explore Q02750 
Go to UniProtKB:  Q02750
PHAROS:  Q02750
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ02750
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GNP
Query on GNP
Download Ideal Coordinates CCD File 
E [auth A]PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N		 Ligand Interaction
GOL
Query on GOL
Download Ideal Coordinates CCD File 
G [auth A],
H [auth C],
I [auth C]		GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
F [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.211 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 106.924α = 90
b = 106.924β = 90
c = 303.928γ = 90
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
PHENIXphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


View more in-depth experimental data

Entry History & Funding Information

Deposition Data

  • Deposited Date: 2020-05-20 
  • Released Date: 2020-07-01 
    • Deposition Author(s): Baumhardt, J.M.
Funding OrganizationLocationGrant Number
Cancer Prevention and Research Institute of Texas (CPRIT)--
Welch Foundation--

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-01
    Type: Initial release
  • Version 1.1: 2020-08-12
    Changes: Database references