4DLQ

Crystal structure of the GAIN and HormR domains of CIRL 1/Latrophilin 1 (CL1)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.165 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

A novel evolutionarily conserved domain of cell-adhesion GPCRs mediates autoproteolysis.

Arac, D.Boucard, A.A.Bolliger, M.F.Nguyen, J.Soltis, S.M.Sudhof, T.C.Brunger, A.T.

(2012) EMBO J 31: 1364-1378

  • DOI: 10.1038/emboj.2012.26
  • Primary Citation of Related Structures:  
    4DLO, 4DLQ

  • PubMed Abstract: 
  • The G protein-coupled receptor (GPCR) Proteolysis Site (GPS) of cell-adhesion GPCRs and polycystic kidney disease (PKD) proteins constitutes a highly conserved autoproteolysis sequence, but its catalytic mechanism remains unknown. Here, we show that unexpectedly the ∼40-residue GPS motif represents an integral part of a much larger ∼320-residue domain that we termed GPCR-Autoproteolysis INducing (GAIN) domain ...

    The G protein-coupled receptor (GPCR) Proteolysis Site (GPS) of cell-adhesion GPCRs and polycystic kidney disease (PKD) proteins constitutes a highly conserved autoproteolysis sequence, but its catalytic mechanism remains unknown. Here, we show that unexpectedly the ∼40-residue GPS motif represents an integral part of a much larger ∼320-residue domain that we termed GPCR-Autoproteolysis INducing (GAIN) domain. Crystal structures of GAIN domains from two distantly related cell-adhesion GPCRs revealed a conserved novel fold in which the GPS motif forms five β-strands that are tightly integrated into the overall GAIN domain. The GAIN domain is evolutionarily conserved from tetrahymena to mammals, is the only extracellular domain shared by all human cell-adhesion GPCRs and PKD proteins, and is the locus of multiple human disease mutations. Functionally, the GAIN domain is both necessary and sufficient for autoproteolysis, suggesting an autoproteolytic mechanism whereby the overall GAIN domain fine-tunes the chemical environment in the GPS to catalyse peptide bond hydrolysis. Thus, the GAIN domain embodies a unique, evolutionarily ancient and widespread autoproteolytic fold whose function is likely relevant for GPCR signalling and for multiple human diseases.


    Organizational Affiliation

    Howard Hughes Medical Institute, Stanford, CA, USA. demeta@stanford.edu



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Latrophilin-1 A381Rattus norvegicusMutation(s): 0 
Gene Names: Lphn1CirlCirl1Cl1Adgrl1
Find proteins for O88917 (Rattus norvegicus)
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Go to UniProtKB:  O88917
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Latrophilin-1 B18Rattus norvegicusMutation(s): 0 
Gene Names: Lphn1CirlCirl1Cl1Adgrl1
Find proteins for O88917 (Rattus norvegicus)
Explore O88917 
Go to UniProtKB:  O88917
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 3
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
C
2 N-Glycosylation Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.165 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 124α = 90
b = 124β = 90
c = 77.305γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
SHARPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-02-22
    Type: Initial release
  • Version 1.1: 2012-04-04
    Changes: Database references
  • Version 1.2: 2018-01-17
    Changes: Data collection
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary