1BK6

KARYOPHERIN ALPHA (YEAST) + SV40 T ANTIGEN NLS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.307 
  • R-Value Work: 0.256 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystallographic analysis of the recognition of a nuclear localization signal by the nuclear import factor karyopherin alpha.

Conti, E.Uy, M.Leighton, L.Blobel, G.Kuriyan, J.

(1998) Cell 94: 193-204

  • Primary Citation of Related Structures:  1BK5

  • PubMed Abstract: 
  • Selective nuclear import is mediated by nuclear localization signals (NLSs) and cognate transport factors known as karyopherins or importins. Karyopherin alpha recognizes "classical" monopartite and bipartite NLSs. We report the crystal structure of ...

    Selective nuclear import is mediated by nuclear localization signals (NLSs) and cognate transport factors known as karyopherins or importins. Karyopherin alpha recognizes "classical" monopartite and bipartite NLSs. We report the crystal structure of a 50 kDa fragment of the 60 kDa yeast karyopherin alpha, in the absence and presence of a monopartite NLS peptide at 2.2 A and 2.8 A resolution, respectively. The structure shows a tandem array of ten armadillo repeats, organized in a right-handed superhelix of helices. Binding of the NLS peptide occurs at two sites within a helical surface groove that is lined by conserved residues. The structure reveals the determinants of NLS specificity and suggests a model for the recognition of bipartite NLSs.


    Organizational Affiliation

    Laboratories of Molecular Biophysics, The Rockefeller University, New York, New York 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
KARYOPHERIN ALPHA
A, B
422Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: SRP1 (KAP60)
Find proteins for Q02821 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q02821
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
LARGE T ANTIGEN
C, E
6N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
LARGE T ANTIGEN
D, F
5N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.307 
  • R-Value Work: 0.256 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 161.120α = 90.00
b = 75.750β = 90.00
c = 84.460γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
CNSphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-01-13
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance