6RNK

Crystal structure of a humanized (K18E, K269N) rat succinate receptor SUCNR1 (GPR91) in complex with a nanobody and antagonist NF-56-EJ40.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis of species-selective antagonist binding to the succinate receptor.

Haffke, M.Fehlmann, D.Rummel, G.Boivineau, J.Duckely, M.Gommermann, N.Cotesta, S.Sirockin, F.Freuler, F.Littlewood-Evans, A.Kaupmann, K.Jaakola, V.P.

(2019) Nature 574: 581-585

  • DOI: 10.1038/s41586-019-1663-8
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The tricarboxylic acid cycle intermediate succinate is involved in metabolic processes and plays a crucial role in the homeostasis of mitochondrial reactive oxygen species <sup>1 </sup>. The receptor responsible for succinate signalling, SUCNR1 (also ...

    The tricarboxylic acid cycle intermediate succinate is involved in metabolic processes and plays a crucial role in the homeostasis of mitochondrial reactive oxygen species 1 . The receptor responsible for succinate signalling, SUCNR1 (also known as GPR91), is a member of the G-protein-coupled-receptor family 2 and links succinate signalling to renin-induced hypertension, retinal angiogenesis and inflammation 3-5 . Because SUCNR1 senses succinate as an immunological danger signal 6 -which has relevance for diseases including ulcerative colitis, liver fibrosis 7 , diabetes and rheumatoid arthritis 3,8 -it is of interest as a therapeutic target. Here we report the high-resolution crystal structure of rat SUCNR1 in complex with an intracellular binding nanobody in the inactive conformation. Structure-based mutagenesis and radioligand-binding studies, in conjunction with molecular modelling, identified key residues for species-selective antagonist binding and enabled the determination of the high-resolution crystal structure of a humanized rat SUCNR1 in complex with a high-affinity, human-selective antagonist denoted NF-56-EJ40. We anticipate that these structural insights into the architecture of the succinate receptor and its antagonist selectivity will enable structure-based drug discovery and will further help to elucidate the function of SUCNR1 in vitro and in vivo.


    Organizational Affiliation

    Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland.,Confo Therapeutics, Zwijnaarde, Belgium. veli-pekka.jaakola@confotherapeutics.com.,Global Discovery Chemistry, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland. matthias.haffke@novartis.com.,Autoimmunity, Transplantation and Inflammation, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland. klemens.kaupmann@novartis.com.,Chemical Biology & Therapeutics, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland. matthias.haffke@novartis.com.,Autoimmunity, Transplantation and Inflammation, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland.,Chemical Biology & Therapeutics, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland.,Chemical Biology & Therapeutics, Novartis Institutes for BioMedical Research, Novartis Pharma AG, Basel, Switzerland. veli-pekka.jaakola@confotherapeutics.com.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Succinate receptor 1
A
342Rattus norvegicusMutation(s): 2 
Gene Names: Sucnr1 (Gpr91)
Find proteins for Q6IYF9 (Rattus norvegicus)
Go to UniProtKB:  Q6IYF9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Nanobody6
B
142N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OLC
Query on OLC

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A
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
1-Oleoyl-R-glycerol
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
SO4
Query on SO4

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Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
KAZ
Query on KAZ

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Download CCD File 
A
2-[2-[[3-[4-[(4-methylpiperazin-1-yl)methyl]phenyl]phenyl]carbonylamino]phenyl]ethanoic acid
C27 H29 N3 O3
UTWXDNZWMQAUKL-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.94 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.177 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 76.830α = 90.00
b = 150.930β = 112.42
c = 68.230γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
AutoPROCdata scaling
BUSTERrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-08-14
    Type: Initial release
  • Version 1.1: 2019-10-16
    Type: Data collection, Database references
  • Version 1.2: 2019-11-06
    Type: Data collection, Database references