Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 22.09 kDa 
• Atom Count: 1424 
• Modelled Residue Count: 166 
• Deposited Residue Count: 191 
• Unique protein chains: 1

1OIW

X-ray structure of the small G protein Rab11a in complex with GTPgammaS

• PDB DOI: 10.2210/pdb1OIW/pdb

• Classification: PROTEIN TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2003-06-26 Released: 2004-01-08 
• Deposition Author(s): Pasqualato, S., Senic-Matuglia, F., Renault, L., Goud, B., Salamero, J., Cherfils, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.285 
• R-Value Work: 0.265 
• R-Value Observed: 0.265 

Literature

The Structural Gdp/GTP Cycle of Rab11 Reveals a Novel Interface Involved in the Dynamics of Recycling Endosomes

Pasqualato, S., Senic-Matuglia, F., Renault, L., Goud, B., Salamero, J., Cherfils, J.

(2004) J Biol Chem 279: 11480

• PubMed: 14699104 
• DOI: 10.1074/jbc.M310558200
• Primary Citation of Related Structures:  
  1OIV, 1OIW


• PubMed Abstract: 
  

The small GTP-binding protein Rab11 is an essential regulator of the dynamics of recycling endosomes. Here we report the crystallographic analysis of the GDP/GTP cycle of human Rab11a, and a structure-based mutagenesis study that identifies a novel mutant phenotype. The crystal structures show that the nucleotide-sensitive switch 1 and 2 regions differ from those of other Rab proteins. In Rab11-GDP, they contribute to a close packed symmetrical dimer, which may associate to membranes in the cell and allow Rab11 to undergo GDP/GTP cycles without recycling to the cytosol. The structure of active Rab11 delineates a three-dimensional site that includes switch 1 and is separate from the site defined by the Rab3/Rabphilin interface. It is proposed to form a novel interface for a Rab11 partner compatible with the simultaneous binding of another partner at the Rabphilin interface. Mutation of Ser(29) to Phe in this epitope resulted in morphological modifications of the recycling compartment that are distinct from those induced by the classical dominant-negative and constitutively active Rab11 mutants. Recycling endosomes condensed in the perinuclear region where they retained recycling transferrin, and they clustered Rab11- and EEA1-positive membranes. Altogether, our study suggests that this mutation impairs a specific subset of Rab11 interactions, possibly those involved in cytoskeleton-based movements driving the slow recycling pathway.

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Organizational Affiliation: 

Laboratoire d'Enzymologie et Biochimie Structurales, CNRS UPR 9063, Avenue de la Terrasse, 91198 Gif sur Yvette, France.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RAS-RELATED PROTEIN RAB-11A	A	191	Homo sapiens	Mutation(s): 1  Gene Names: RAB11A, RAB11 EC: 3.6.5.2
UniProt & NIH Common Fund Data Resources
Find proteins for P62491 (Homo sapiens) Explore P62491  Go to UniProtKB:  P62491
PHAROS:  P62491 GTEx:  ENSG00000103769

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GSP	B [auth A]	5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE C10 H16 N5 O13 P3 S XOFLBQFBSOEHOG-UUOKFMHZSA-N
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.285 
• R-Value Work: 0.265 
• R-Value Observed: 0.265 
• Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.726	α = 90
b = 73.726	β = 90
c = 125.152	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
XDS	data reduction
XSCALE	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-06-26 
• Released Date: 2004-01-08 
Deposition Author(s): Pasqualato, S., Senic-Matuglia, F., Renault, L., Goud, B., Salamero, J., Cherfils, J.

Revision History  

• Version 1.0: 2004-01-08
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance