4BEZ

Night blindness causing G90D rhodopsin in the active conformation

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.230 

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Literature

Insights Into Congenital Stationary Night Blindness Based on the Structure of G90D Rhodopsin.

Singhal, A., Ostermaier, M.K., Vishnivetskiy, S.A., Panneels, V., Homan, K.T., Tesmer, J.J., Veprintsev, D., Deupi, X., Gurevich, V.V., Schertler, G.F., Standfuss, J.

(2013) EMBO Rep 14: 520

  • DOI: 10.1038/embor.2013.44
  • Primary Citation of Related Structures:  
    4BEY, 4BEZ

  • PubMed Abstract: 

    • We present active-state structures of the G protein-coupled receptor (GPCRs) rhodopsin carrying the disease-causing mutation G90D. Mutations of G90 cause either retinitis pigmentosa (RP) or congenital stationary night blindness (CSNB), a milder, non- ...

    We present active-state structures of the G protein-coupled receptor (GPCRs) rhodopsin carrying the disease-causing mutation G90D. Mutations of G90 cause either retinitis pigmentosa (RP) or congenital stationary night blindness (CSNB), a milder, non-progressive form of RP. Our analysis shows that the CSNB-causing G90D mutation introduces a salt bridge with K296. The mutant thus interferes with the E113Q-K296 activation switch and the covalent binding of the inverse agonist 11-cis-retinal, two interactions that are crucial for the deactivation of rhodopsin. Other mutations, including G90V causing RP, cannot promote similar interactions. We discuss our findings in context of a model in which CSNB is caused by constitutive activation of the visual signalling cascade.

    Organizational Affiliation: 

    Laboratory of Biomolecular Research, Paul Scherrer Institut, Villigen 5232, Switzerland.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RHODOPSINA349Bos taurusMutation(s): 3 
Gene Names: RHO
Find proteins for P02699 (Bos taurus)
Explore P02699 
Go to UniProtKB:  P02699
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 2
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
B
4 N-Glycosylation Oligosaccharides Interaction
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BOG
Query on BOG
Download Ideal Coordinates CCD File 
A
octyl beta-D-glucopyranoside
C14 H28 O6
HEGSGKPQLMEBJL-RKQHYHRCSA-N		 Ligand Interaction
PLM
Query on PLM
Download Ideal Coordinates CCD File 
A
PALMITIC ACID
C16 H32 O2
IPCSVZSSVZVIGE-UHFFFAOYSA-N		 Ligand Interaction
SO4
Query on SO4
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A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L		 Ligand Interaction
ACT
Query on ACT
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A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.230 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 242.44α = 90
b = 242.44β = 90
c = 110.36γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-24
    Type: Initial release
  • Version 1.1: 2013-06-19
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Other, Structure summary