3DOW

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.233 

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
  • Primary Citation of Related Structures:  
    3DOW

  • 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 underlying the interaction of GABARAP with calreticulin using spectroscopic and crystallographic techniques ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Gamma-aminobutyric acid receptor-associated proteinA119Homo sapiensMutation(s): 0 
Gene Names: GABARAPFLC3BHT004
UniProt & NIH Common Fund Data Resources
Find proteins for O95166 (Homo sapiens)
Explore O95166 
Go to UniProtKB:  O95166
PHAROS:  O95166
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
CRT peptideB12N/AMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P27797 (Homo sapiens)
Explore P27797 
Go to UniProtKB:  P27797
PHAROS:  P27797
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth A]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.233 
  • Space Group: I 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.043α = 90
b = 97.043β = 90
c = 97.043γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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