1YRG

THE CRYSTAL STRUCTURE OF RNA1P: A NEW FOLD FOR A GTPASE-ACTIVATING PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The crystal structure of rna1p: a new fold for a GTPase-activating protein.

Hillig, R.C.Renault, L.Vetter, I.R.Drell IV, T.Wittinghofer, A.Becker, J.

(1999) Mol.Cell 3: 781-791

  • Also Cited By: 2CA6

  • PubMed Abstract: 
  • rna1p is the Schizosaccharomyces pombe ortholog of the mammalian GTPase-activating protein (GAP) of Ran. Both proteins are essential for nuclear transport. Here, we report the crystal structure of rna1p at 2.66 A resolution. It contains 11 leucine-ri ...

    rna1p is the Schizosaccharomyces pombe ortholog of the mammalian GTPase-activating protein (GAP) of Ran. Both proteins are essential for nuclear transport. Here, we report the crystal structure of rna1p at 2.66 A resolution. It contains 11 leucine-rich repeats that adopt the nonglobular shape of a crescent, bearing no resemblance to RhoGAP or RasGAP. The invariant residues of RanGAP form a contiguous surface, strongly indicating the Ran-binding interface. Alanine mutations identify Arg-74 as a critical residue for GTP hydrolysis. In contrast to RasGAP and RhoGAP, Arg-74 could be substituted by lysine and contributed significantly to the binding of Ran. Therefore, we suggest a GAP mechanism for rna1p, which constitutes a variation of the arginine finger mechanism found for Ras GAP and RhoGAP.


    Related Citations: 
    • A Functional Homologue of the RNA1 Gene Product in Schizosaccharomyces Pombe: Purification, Biochemical Characterization, and Identification of a Leucine- Rich Repeat Motif
      Melchior, F.,Weber, K.,Gerke, V.
      (1993) Mol.Cell.Biol. 4: 569
    • RNA1 Encodes a Gtpase-Activating Protein Specific for Gsp1P, the Ran/Tc4 Homologue of Saccharomycescerevisiae
      Becker, J.,Melchior, F.,Gerke, V.,Bischoff, F.R.,Ponstingl, H.,Wittinghofer, A.
      (1995) J.Biol.Chem. 270: 11860


    Organizational Affiliation

    Max-Planck-Institut für molekulare Physiologie, Abteilung Strukturelle Biologie, Dortmund, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GTPASE-ACTIVATING PROTEIN RNA1_SCHPO
A, B
385Schizosaccharomyces pombe (strain 972 / ATCC 24843)Mutation(s): 0 
Gene Names: rna1
Find proteins for P41391 (Schizosaccharomyces pombe (strain 972 / ATCC 24843))
Go to UniProtKB:  P41391
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.228 
  • Space Group: I 41
Unit Cell:
Length (Å)Angle (°)
a = 175.530α = 90.00
b = 175.530β = 90.00
c = 55.800γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
SOLVEphasing
MLPHAREphasing
CNSrefinement
DENZOdata reduction
SHARPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-03-29
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-01-31
    Type: Database references