3LWW

Structure of an open and closed conformation of Human Importin Beta bound to the Snurportin1 IBB-domain trapped in the same crystallographic asymmetric unit


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.264 
  • R-Value Observed: 0.266 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Conformational selection in the recognition of the snurportin importin beta binding domain by importin beta.

Bhardwaj, A.Cingolani, G.

(2010) Biochemistry 49: 5042-5047

  • DOI: 10.1021/bi100292y
  • Primary Citation of Related Structures:  
    3LWW

  • PubMed Abstract: 
  • The structural flexibility of beta-karyopherins is critical to mediate the interaction with transport substrates, nucleoporins, and the GTPase Ran. In this paper, we provide structural evidence that the molecular recognition of the transport adaptor ...

    The structural flexibility of beta-karyopherins is critical to mediate the interaction with transport substrates, nucleoporins, and the GTPase Ran. In this paper, we provide structural evidence that the molecular recognition of the transport adaptor snurportin by importin beta follows the population selection mechanism. We have captured two drastically different conformations of importin beta bound to the snurportin importin beta binding domain trapped in the same crystallographic asymmetric unit. We propose the population selection may be a general mechanism used by beta-karyopherins to recognize transport substrates.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Thomas Jefferson University, 233 South 10th Street, Philadelphia, Pennsylvania 19107, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Importin subunit beta-1AC876Homo sapiensMutation(s): 0 
Gene Names: KPNB1NTF97
Find proteins for Q14974 (Homo sapiens)
Explore Q14974 
Go to UniProtKB:  Q14974
NIH Common Fund Data Resources
PHAROS  Q14974
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Snurportin-1BD40N/AMutation(s): 0 
Find proteins for O95149 (Homo sapiens)
Explore O95149 
Go to UniProtKB:  O95149
NIH Common Fund Data Resources
PHAROS  O95149
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.313 
  • R-Value Work: 0.264 
  • R-Value Observed: 0.266 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.65α = 90
b = 101.735β = 110.88
c = 101.963γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance