3DOW

Complex structure of GABA type A receptor associated protein and its binding epitope on calreticulin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural framework of the GABARAP-calreticulin interface - implications for substrate binding to endoplasmic reticulum chaperones.

Thielmann, Y.Weiergraber, O.H.Mohrluder, J.Willbold, D.

(2009) Febs J. 276: 1140-1152

  • DOI: 10.1111/j.1742-4658.2008.06857.x

  • PubMed Abstract: 
  • The 4-aminobutyrate type A receptor-associated protein (GABARAP) is a versatile adaptor protein that plays an important role in intracellular vesicle trafficking, particularly in neuronal cells. We have investigated the structural determinants underl ...

    The 4-aminobutyrate type A receptor-associated protein (GABARAP) is a versatile adaptor protein that plays an important role in intracellular vesicle trafficking, particularly in neuronal cells. We have investigated the structural determinants underlying the interaction of GABARAP with calreticulin using spectroscopic and crystallographic techniques. Specifically, we present the crystal structure of GABARAP in complex with its major binding epitope on the chaperone. Molecular modeling of a complex containing full-length calreticulin suggests a novel mode of substrate interaction, which may have functional implications for the calreticulin/calnexin family in general.


    Organizational Affiliation

    Institut für Neurowissenschaften und Biophysik, Molekulare Biophysik, Forschungszentrum Jülich, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Gamma-aminobutyric acid receptor-associated protein
A
119Homo sapiensMutation(s): 0 
Gene Names: GABARAP (FLC3B)
Find proteins for O95166 (Homo sapiens)
Go to Gene View: GABARAP
Go to UniProtKB:  O95166
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CRT peptide
B
12Homo sapiensMutation(s): 0 
Gene Names: CALR (CRTC)
Find proteins for P27797 (Homo sapiens)
Go to Gene View: CALR
Go to UniProtKB:  P27797
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
NH2
Query on NH2
B
NON-POLYMERH2 N

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.232 
  • Space Group: I 2 3
Unit Cell:
Length (Å)Angle (°)
a = 97.043α = 90.00
b = 97.043β = 90.00
c = 97.043γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
MOLREPphasing
PHENIXrefinement
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-02-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance