2GIL

Structure of the extremely slow GTPase Rab6A in the GTP bound form at 1.8 resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the extremely slow GTPase Rab6A in the GTP bound form at 1.8 resolution

Bergbrede, T.Pylypenko, O.Rak, A.Alexandrov, A.

(2005) J.STRUCT.BIOL. 152: 235-238

  • DOI: 10.1016/j.jsb.2005.10.001

  • PubMed Abstract: 
  • Rab/Ypt GTPases represent a>60 member large family of membrane traffic regulators in eukaryotic cells. Members of this group display intrinsic GTPase activity varying over two orders of magnitude. Here, we show that Rab6A represents the RabGTPase wit ...

    Rab/Ypt GTPases represent a>60 member large family of membrane traffic regulators in eukaryotic cells. Members of this group display intrinsic GTPase activity varying over two orders of magnitude. Here, we show that Rab6A represents the RabGTPase with the slowest spontaneous GTPase activity yet measured (5x10(-6)s(-1)). Due to the very low intrinsic hydrolysis rate we were able to crystallise and solve the structure of the Rab6A:GTP complex to 1.82A resolution. Analysis of the structure suggests that low catalytic activity of the Rab6A might be due to high flexibility of the Switch II region and a low degree of constraint of critically important for catalysis Gln 72.


    Organizational Affiliation

    Max-Planck-Institute for Molecular Physiology, Otto-Hahn-Str. 11, 44227 Dortmund, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ras-related protein Rab-6A
A, B, C, D
162Homo sapiensMutation(s): 0 
Gene Names: RAB6A (RAB6)
Find proteins for P20340 (Homo sapiens)
Go to Gene View: RAB6A
Go to UniProtKB:  P20340
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GTP
Query on GTP

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

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.205 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 40.008α = 90.00
b = 124.853β = 107.57
c = 66.162γ = 90.00
Software Package:
Software NamePurpose
ProDCdata collection
XDSdata scaling
REFMACrefinement
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-06-27
    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: 2017-10-18
    Type: Refinement description