Drosophila melanogaster Rab2 bound to GMPPNP

Experimental Data Snapshot

  • Resolution: 2.00 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.170 

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This is version 1.2 of the entry. See complete history


Structures of Drosophila melanogaster Rab2 and Rab3 bound to GMPPNP.

Lardong, J.A.Driller, J.H.Depner, H.Weise, C.Petzoldt, A.Wahl, M.C.Sigrist, S.J.Loll, B.

(2015) Acta Crystallogr Sect F Struct Biol Cryst Commun 71: 34-40

  • DOI: https://doi.org/10.1107/S2053230X1402617X
  • Primary Citation of Related Structures:  
    4RKE, 4RKF

  • PubMed Abstract: 

    Rab GTPases belong to the large family of Ras proteins. They act as key regulators of membrane organization and intracellular trafficking. Functionally, they act as switches. In the active GTP-bound form they can bind to effector proteins to facilitate the delivery of transport vesicles. Upon stimulation, the GTP is hydrolyzed and the Rab proteins undergo conformational changes in their switch regions. This study focuses on Rab2 and Rab3 from Drosophila melanogaster. Whereas Rab2 is involved in vesicle transport between the Golgi and the endoplasmatic reticulum, Rab3 is a key player in exocytosis, and in the synapse it is involved in the assembly of the presynaptic active zone. Here, high-resolution crystal structures of Rab2 and Rab3 in complex with GMPPNP and Mg2+ are presented. In the structure of Rab3 a modified cysteine residue is observed with an enigmatic electron density attached to its thiol function.

  • Organizational Affiliation

    Institut für Chemie und Biochemie Abteilung Strukturbiochemie, Freie Universität Berlin, Takustrasse 6, 15195 Berlin, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GH01619p176Drosophila melanogasterMutation(s): 1 
Gene Names: rab2CG3269Dmel_CG3269Rab2Dmel\CG3269DmRab2DRAB2DRab2Drab2O18333
Find proteins for O18333 (Drosophila melanogaster)
Explore O18333 
Go to UniProtKB:  O18333
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO18333
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.00 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.170 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.355α = 90
b = 81.355β = 90
c = 53.128γ = 120
Software Package:
Software NamePurpose
MAR345dtbdata collection
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-10
    Type: Initial release
  • Version 1.1: 2015-01-07
    Changes: Database references
  • Version 1.2: 2015-02-04
    Changes: Database references