2BME

high resolution structure of GppNHp-bound human Rab4a


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

High Resolution Crystal Structures of Human Rab4A in its Active and Inactive Conformations.

Huber, S.K.Scheidig, A.J.

(2005) FEBS Lett. 579: 2821

  • DOI: 10.1016/j.febslet.2005.04.020
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The Ras-related human GTPase Rab4a is involved in the regulation of endocytosis through the sorting and recycling of early endosomes. Towards further insight, we have determined the three-dimensional crystal structure of human Rab4a in its GppNHp-bou ...

    The Ras-related human GTPase Rab4a is involved in the regulation of endocytosis through the sorting and recycling of early endosomes. Towards further insight, we have determined the three-dimensional crystal structure of human Rab4a in its GppNHp-bound state to 1.6 Angstroms resolution and in its GDP-bound state to 1.8 Angstroms resolution, respectively. Despite the similarity of the overall structure with other Rab proteins, Rab4a displays significant differences. The structures are discussed with respect to the recently determined structure of human Rab5a and its complex with the Rab5-binding domain of the bivalent effector Rabaptin-5. The Rab4 specific residue His39 modulates the nucleotide binding pocket giving rise to a reduced rate for nucleotide hydrolysis and exchange. In comparison to Rab5, Rab4a has a different GDP-bound conformation within switch 1 region and displays shifts in position and orientation of the hydrophobic triad. The observed differences at the S2-L3-S3 region represent a new example of structural plasticity among Rab proteins and may provide a structural basis to understand the differential binding of similar effector proteins.


    Organizational Affiliation

    Max-Planck Institut für Molekulare Physiologie, Abteilung für Physikalische Biochemie, Dortmund, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RAS-RELATED PROTEIN RAB4A
A, B, C, D
186Homo sapiensMutation(s): 0 
Gene Names: RAB4A (RAB4)
Find proteins for P20338 (Homo sapiens)
Go to Gene View: RAB4A
Go to UniProtKB:  P20338
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BME
Query on BME

Download SDF File 
Download CCD File 
A, C
BETA-MERCAPTOETHANOL
C2 H6 O S
DGVVWUTYPXICAM-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A, B, C, D
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
GNP
Query on GNP

Download SDF File 
Download CCD File 
A, B, C, D
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N
 Ligand Interaction
TRS
Query on TRS

Download SDF File 
Download CCD File 
A, C, D
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
TRIS BUFFER
C4 H12 N O3
LENZDBCJOHFCAS-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.192 
  • Space Group: P 43
Unit Cell:
Length (Å)Angle (°)
a = 99.790α = 90.00
b = 99.790β = 90.00
c = 95.540γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
XDSdata reduction
REFMACrefinement
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-04-25
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance