2J5X

STRUCTURE OF THE SMALL G PROTEIN ARF6 IN COMPLEX WITH GTPGAMMAS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.234 
  • R-Value Observed: 0.234 

Starting Model: other
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

The Structural Gdp-GTP Cycle of Human Arf6.

Pasqualato, S.Menetrey, J.Franco, M.Cherfils, J.

(2001) EMBO Rep 2: 234

  • DOI: https://doi.org/10.1093/embo-reports/kve043
  • Primary Citation of Related Structures:  
    2J5X

  • PubMed Abstract: 

    The small GTP-binding protein Arf6 coordinates membrane traffic at the plasma membrane with aspects of cytoskeleton organization. This function does not overlap with that of other members of the ADP-ribosylation factor (Arf) family, although their switch regions, which are their major sites of interaction with regulators and effectors, have virtually identical sequences. Here we report the crystal structure of full-length, non-myristoylated human Arf6 bound to GTPgammaS. Unlike their GDP-bound forms, the active forms of Arf6 and Arf1 are very similar. Thus, the switch regions are discriminatory elements between Arf isoforms in their inactive but not in their active forms, a property that may generalize to other families of small G proteins. This suggests that GTP-bound Arfs may establish specific interactions outside the switch regions and/or be recognized in their cellular context rather than as isolated proteins. The structure also allows further insight into the lack of spontaneous GTPase activity of Arf proteins.


  • Organizational Affiliation

    Laboratoire d'Enzymologie et Biochimie Structurales, CNRS, 1, avenue de la Terrasse, 91198 Gif sur Yvette cedex and Institut de Pharmacologie Moléculaire et Cellulaire, CNRS, 660 route des Lucioles, 06560 Valbonne, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ADP-RIBOSYLATION FACTOR 6
A, B
175Homo sapiensMutation(s): 0 
EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P62330 (Homo sapiens)
Explore P62330 
Go to UniProtKB:  P62330
PHAROS:  P62330
GTEx:  ENSG00000165527 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62330
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.234 
  • R-Value Observed: 0.234 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.895α = 90
b = 72.895β = 90
c = 131.489γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-09-21
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-05-01
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description