3BBP

Rab6-GTP:GCC185 Rab binding domain complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.228 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Rab and Arl GTPase family members cooperate in the localization of the golgin GCC185.

Burguete, A.S.Fenn, T.D.Brunger, A.T.Pfeffer, S.R.

(2008) Cell 132: 286-298

  • DOI: 10.1016/j.cell.2007.11.048
  • Primary Citation of Related Structures:  
    3BBP

  • PubMed Abstract: 
  • GCC185 is a large coiled-coil protein at the trans Golgi network that is required for receipt of transport vesicles inbound from late endosomes and for anchoring noncentrosomal microtubules that emanate from the Golgi. Here, we demonstrate that recru ...

    GCC185 is a large coiled-coil protein at the trans Golgi network that is required for receipt of transport vesicles inbound from late endosomes and for anchoring noncentrosomal microtubules that emanate from the Golgi. Here, we demonstrate that recruitment of GCC185 to the Golgi is mediated by two Golgi-localized small GTPases of the Rab and Arl families. GCC185 binds Rab6, and mutation of residues needed for Rab binding abolishes Golgi localization. The crystal structure of Rab6 bound to the GCC185 Rab-binding domain reveals that Rab6 recognizes a two-fold symmetric surface on a coiled coil immediately adjacent to a C-terminal GRIP domain. Unexpectedly, Rab6 binding promotes association of Arl1 with the GRIP domain. We present a structure-derived model for dual GTPase membrane attachment that highlights the potential ability of Rab GTPases to reach binding partners at a significant distance from the membrane via their unstructured and membrane-anchored, hypervariable domains.


    Organizational Affiliation

    Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ras-related protein Rab-6AABC211Homo sapiensMutation(s): 1 
Gene Names: RAB6ARAB6
Find proteins for P20340 (Homo sapiens)
Explore P20340 
Go to UniProtKB:  P20340
NIH Common Fund Data Resources
PHAROS  P20340
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
GRIP and coiled-coil domain-containing protein 2DEF71Homo sapiensMutation(s): 0 
Gene Names: GCC2KIAA0336RANBP2L4
Find proteins for Q8IWJ2 (Homo sapiens)
Explore Q8IWJ2 
Go to UniProtKB:  Q8IWJ2
NIH Common Fund Data Resources
PHAROS  Q8IWJ2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.228 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 168.599α = 90
b = 168.599β = 90
c = 168.955γ = 120
Software Package:
Software NamePurpose
Blu-Icedata collection
PHASERphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-02-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance