2FFQ

The crystal structure of human neuronal Rab6B in its active GTPgS-bound form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of human neuronal Rab6B in the active and inactive form.

Garcia-Saez, I.Tcherniuk, S.Kozielski, F.

(2006) Acta Crystallogr.,Sect.D 62: 725-733

  • DOI: 10.1107/S0907444906015319
  • Primary Citation of Related Structures:  
  • Also Cited By: 2E9S

  • PubMed Abstract: 
  • The Rab small G-protein family plays important roles in eukaryotes as regulators of vesicle traffic. In Rab proteins, the hydrolysis of GTP to GDP is coupled with association with and dissociation from membranes. Conformational changes related to the ...

    The Rab small G-protein family plays important roles in eukaryotes as regulators of vesicle traffic. In Rab proteins, the hydrolysis of GTP to GDP is coupled with association with and dissociation from membranes. Conformational changes related to their different nucleotide states determine their effector specificity. The crystal structure of human neuronal Rab6B was solved in its 'inactive' (with bound MgGDP) and 'active' (MgGTPgammaS-bound) forms to 2.3 and 1.8 A, respectively. Both crystallized in space group P2(1)2(1)2(1), with similar unit-cell parameters, allowing the comparison of both structures without packing artifacts. Conformational changes between the inactive GDP and active GTP-like state are observed mainly in the switch I and switch II regions, confirming their role as a molecular switch. Compared with other Rab proteins, additional changes are observed in the Rab6 subfamily-specific RabSF3 region that might contribute to the specificity of Rab6 for its different effector proteins.


    Organizational Affiliation

    Laboratoire des Moteurs Mol├ęculaires (LMM), Institut de Biologie Structurale (CEA-CNRS-UJF), 41 Rue Jules Horowitz, 38027 Grenoble CEDEX 01, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ras-related protein Rab-6B
A
171Homo sapiensMutation(s): 0 
Gene Names: RAB6B
Find proteins for Q9NRW1 (Homo sapiens)
Go to Gene View: RAB6B
Go to UniProtKB:  Q9NRW1
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
GSP
Query on GSP

Download SDF File 
Download CCD File 
A
5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE
C10 H16 N5 O13 P3 S
XOFLBQFBSOEHOG-UUOKFMHZSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.191 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 35.885α = 90.00
b = 60.983β = 90.00
c = 63.685γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
CCP4data scaling
CNSrefinement
DENZOdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-07-04
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance