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 
  • R-Value Observed: 0.208 

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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
  • Primary Citation of Related Structures:  
    2GIL

  • 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 with the slowest spontaneous GTPase activity yet measured (5x10(-6)s(-1)) ...

    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: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ras-related protein Rab-6AA, B, C, D162Homo sapiensMutation(s): 0 
Gene Names: RAB6A, RAB6
UniProt & NIH Common Fund Data Resources
Find proteins for P20340 (Homo sapiens)
Explore P20340 
Go to UniProtKB:  P20340
PHAROS:  P20340
GTEx:  ENSG00000175582
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.208 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.008α = 90
b = 124.853β = 107.57
c = 66.162γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
ProDCdata collection
XDSdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-06-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description