2FTS

Crystal structure of the glycine receptor-gephyrin complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.192 

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This is version 1.3 of the entry. See complete history


Literature

Deciphering the structural framework of glycine receptor anchoring by gephyrin.

Kim, E.Y.Schrader, N.Smolinsky, B.Bedet, C.Vannier, C.Schwarz, G.Schindelin, H.

(2006) EMBO J 25: 1385-1395

  • DOI: 10.1038/sj.emboj.7601029
  • Primary Citation of Related Structures:  
    2FTS, 2FU3

  • PubMed Abstract: 
  • Glycine is the major inhibitory neurotransmitter in the spinal cord and brain stem. Gephyrin is required to achieve a high concentration of glycine receptors (GlyRs) in the postsynaptic membrane, which is crucial for efficient glycinergic signal transduction ...

    Glycine is the major inhibitory neurotransmitter in the spinal cord and brain stem. Gephyrin is required to achieve a high concentration of glycine receptors (GlyRs) in the postsynaptic membrane, which is crucial for efficient glycinergic signal transduction. The interaction between gephyrin and the GlyR involves the E-domain of gephyrin and a cytoplasmic loop located between transmembrane segments three and four of the GlyR beta subunit. Here, we present crystal structures of the gephyrin E-domain with and without the GlyR beta-loop at 2.4 and 2.7 A resolutions, respectively. The GlyR beta-loop is bound in a symmetric 'key and lock' fashion to each E-domain monomer in a pocket adjacent to the dimer interface. Structure-guided mutagenesis followed by in vitro binding and in vivo colocalization assays demonstrate that a hydrophobic interaction formed by Phe 330 of gephyrin and Phe 398 and Ile 400 of the GlyR beta-loop is crucial for binding.


    Organizational Affiliation

    Department of Biochemistry, Center for Structural Biology, State University of New York, Stony Brook, NY 11794-5115, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
gephyrinA419Rattus norvegicusMutation(s): 0 
Gene Names: Rattus norvegicus (Norway rat)GphnGph
EC: 2.7.7.75 (UniProt), 2.10.1.1 (UniProt)
UniProt
Find proteins for Q03555 (Rattus norvegicus)
Explore Q03555 
Go to UniProtKB:  Q03555
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Glycine receptor beta chain precursorB [auth P]13Rattus norvegicusMutation(s): 0 
Gene Names: Glrb
UniProt
Find proteins for P20781 (Rattus norvegicus)
Explore P20781 
Go to UniProtKB:  P20781
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.192 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.298α = 90
b = 123.541β = 90
c = 155.047γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-03-14
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Derived calculations, Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description