2H4M

Karyopherin Beta2/Transportin-M9NLS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.238 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Rules for nuclear localization sequence recognition by karyopherin beta 2.

Lee, B.J.Cansizoglu, A.E.Louis, T.H.Zhang, Z.Chook, Y.M.

(2006) Cell 126: 543-558

  • DOI: 10.1016/j.cell.2006.05.049

  • PubMed Abstract: 
  • Karyopherinbeta (Kapbeta) proteins bind nuclear localization and export signals (NLSs and NESs) to mediate nucleocytoplasmic trafficking, a process regulated by Ran GTPase through its nucleotide cycle. Diversity and complexity of signals recognized b ...

    Karyopherinbeta (Kapbeta) proteins bind nuclear localization and export signals (NLSs and NESs) to mediate nucleocytoplasmic trafficking, a process regulated by Ran GTPase through its nucleotide cycle. Diversity and complexity of signals recognized by Kap betas have prevented prediction of new Kap beta substrates. The structure of Kap beta 2 (also known as Transportin) bound to one of its substrates, the NLS of hnRNP A1, that we report here explains the mechanism of substrate displacement by Ran GTPase. Further analyses reveal three rules for NLS recognition by Kap beta 2: NLSs are structurally disordered in free substrates, have overall basic character, and possess a central hydrophobic or basic motif followed by a C-terminal R/H/KX(2-5)PY consensus sequence. We demonstrate the predictive nature of these rules by identifying NLSs in seven previously known Kap beta 2 substrates and uncovering 81 new candidate substrates, confirming five experimentally. These studies define and validate a new NLS that could not be predicted by primary sequence analysis alone.


    Organizational Affiliation

    Department of Pharmacology, University of Texas Southwestern Medical Center at Dallas, 6001 Forest Park, Dallas, TX 75390, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transportin-1
A, B
865Homo sapiensMutation(s): 0 
Gene Names: TNPO1 (KPNB2, MIP1, TRN)
Find proteins for Q92973 (Homo sapiens)
Go to Gene View: TNPO1
Go to UniProtKB:  Q92973
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Heterogeneous nuclear ribonucleoprotein A1
C, D
49Homo sapiensMutation(s): 0 
Gene Names: HNRNPA1 (HNRPA1)
Find proteins for P09651 (Homo sapiens)
Go to Gene View: HNRNPA1
Go to UniProtKB:  P09651
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.238 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 152.013α = 90.00
b = 154.093β = 91.75
c = 141.667γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
SBC-Collectdata collection
HKL-2000data reduction
CNSrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-10-24
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-06-14
    Type: Advisory, Database references, Source and taxonomy, Structure summary