3BBP

Rab6-GTP:GCC185 Rab binding domain complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.268 
  • R-Value Work: 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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ras-related protein Rab-6A
A, B, C
211Homo sapiensMutation(s): 1 
Gene Names: RAB6A (RAB6)
Find proteins for P20340 (Homo sapiens)
Go to Gene View: RAB6A
Go to UniProtKB:  P20340
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
GRIP and coiled-coil domain-containing protein 2
D, E, F
71Homo sapiensMutation(s): 0 
Gene Names: GCC2 (KIAA0336, RANBP2L4)
Find proteins for Q8IWJ2 (Homo sapiens)
Go to Gene View: GCC2
Go to UniProtKB:  Q8IWJ2
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GTP
Query on GTP

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.228 
  • Space Group: P 64 2 2
Unit Cell:
Length (Å)Angle (°)
a = 168.599α = 90.00
b = 168.599β = 90.00
c = 168.955γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
DENZOdata reduction
REFMACrefinement
Blu-Icedata collection
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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