4OL0

Crystal structure of transportin-SR2, a karyopherin involved in human disease, in complex with Ran


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of transportin SR2, a karyopherin involved in human disease, in complex with Ran.

Tsirkone, V.G.Beutels, K.G.Demeulemeester, J.Debyser, Z.Christ, F.Strelkov, S.V.

(2014) Acta Crystallogr.,Sect.F 70: 723-729

  • DOI: 10.1107/S2053230X14009492

  • PubMed Abstract: 
  • Transportin SR2 (TRN-SR2) is a β-type karyopherin responsible for the nuclear import of specific cargoes, including serine/arginine-rich splicing factors. The protein has been implicated in a variety of human diseases, including HIV infection, primar ...

    Transportin SR2 (TRN-SR2) is a β-type karyopherin responsible for the nuclear import of specific cargoes, including serine/arginine-rich splicing factors. The protein has been implicated in a variety of human diseases, including HIV infection, primary biliary cirrhosis and limb-girdle muscular dystrophy 1F. Towards understanding its molecular mechanism, a 2.9 Å resolution crystal structure of human TRN-SR2 complexed with the small GTPase Ran has been determined. TRN-SR2 is composed of 20 α-helical HEAT repeats forming a solenoid-like fold. The first nine repeats form a `cradle' for the binding of RanGTP, revealing similarities but also differences with respect to the related importin 13 complex.


    Organizational Affiliation

    Laboratory for Biocrystallography, Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Herestraat 49 bus 822, 3000 Leuven, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GTP-binding nuclear protein Ran
A
216Homo sapiensMutation(s): 0 
Gene Names: RAN (ARA24)
Find proteins for P62826 (Homo sapiens)
Go to Gene View: RAN
Go to UniProtKB:  P62826
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Transportin-3
B
921Homo sapiensMutation(s): 0 
Gene Names: TNPO3 (IPO12)
Find proteins for Q9Y5L0 (Homo sapiens)
Go to Gene View: TNPO3
Go to UniProtKB:  Q9Y5L0
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GTP
Query on GTP

Download SDF File 
Download CCD File 
A
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 74.202α = 90.00
b = 109.970β = 90.00
c = 148.462γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
Aimlessdata scaling
XDSdata scaling
PHENIXrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-09
    Type: Initial release
  • Version 1.1: 2014-06-25
    Type: Database references