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GABA(A) receptor associated protein GABARAP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The X-Ray Crystal Structure and Putative Ligand-Derived Peptide Binding Properties of Gamma-Aminobutyric Acid Receptor Type a Receptor-Associated Protein

Knight, D.Harris, R.Mcalister, M.Phelan, J.Geddes, S.Moss, S.Driscoll, P.C.Keep, N.H.

(2002) J.Biol.Chem. 277: 5556

  • DOI: 10.1074/jbc.M109753200

  • PubMed Abstract: 
  • The gamma-aminobutyric acid receptor type A (GABA(A)) receptor-associated protein (GABARAP) has been reported to mediate the interaction between the GABA(A) receptor and microtubules. We present the three-dimensional structure of GABARAP obtained by ...

    The gamma-aminobutyric acid receptor type A (GABA(A)) receptor-associated protein (GABARAP) has been reported to mediate the interaction between the GABA(A) receptor and microtubules. We present the three-dimensional structure of GABARAP obtained by x-ray diffraction at 1.75 A resolution. The structure was determined by molecular replacement using the structure of the homologous protein GATE-16. NMR spectroscopy of isotope-labeled GABARAP showed the structure in solution to be compatible with the overall fold but showed evidence of conformation heterogeneity that is not apparent in the crystal structure. We assessed the binding of GABARAP to peptides derived from reported binding partner proteins, including the M3-M4 loop of the gamma2 subunit of the GABA(A) receptor and the acidic carboxyl-terminal tails of human alpha- and beta-tubulin. There is a small area of concentrated positive charge on one surface of GABARAP, which we found interacts weakly with all peptides tested, but we found no evidence for specific binding to the proposed physiological target peptides. These results are compatible with a more general role in membrane targeting and transportation for the GABARAP family of proteins.


    Organizational Affiliation

    School of Crystallography, Birkbeck College, University of London, Malet Street, London WC1E 7HX, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GABARAP
A
117Homo sapiensMutation(s): 0 
Gene Names: GABARAP (FLC3B)
Find proteins for O95166 (Homo sapiens)
Go to Gene View: GABARAP
Go to UniProtKB:  O95166
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NI
Query on NI

Download SDF File 
Download CCD File 
A
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.201 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 30.013α = 90.00
b = 55.124β = 90.00
c = 64.418γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
MOLREPphasing
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-12-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance