7K7Z

Structure of a hit for G Protein Coupled Receptor Kinase 2 (GRK2) Inhibitor for the Potential Treatment of Heart Failure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.207 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Hit-to-lead optimization and discovery of a potent, and orally bioavailable G protein coupled receptor kinase 2 (GRK2) inhibitor.

Xu, G.Gaul, M.D.Liu, Z.DesJarlais, R.L.Qi, J.Wang, W.Krosky, D.Petrounia, I.Milligan, C.M.Hermans, A.Lu, H.R.Huang, D.Z.Xu, J.Z.Spurlino, J.C.

(2020) Bioorg Med Chem Lett 30: 127602-127602

  • DOI: https://doi.org/10.1016/j.bmcl.2020.127602
  • Primary Citation of Related Structures:  
    7K7L, 7K7Z

  • PubMed Abstract: 

    G-protein coupled receptor kinase 2 (GRK2), which is upregulated in the failing heart, appears to play a critical role in heart failure (HF) progression in part because enhanced GRK2 activity promotes dysfunction of β-adrenergic signaling and myocyte death. An orally bioavailable GRK2 inhibitor could offer unique therapeutic outcomes that cannot be attained by current heart failure treatments that directly target GPCRs or angiotensin-converting enzyme. Herein, we describe the discovery of a potent, selective, and orally bioavailable GRK2 inhibitor, 8h, through high-throughput screening, hit-to-lead optimization, structure-based design, molecular modelling, synthesis, and biological evaluation. In the cellular target engagement assays, 8h enhances isoproterenol-mediated cyclic adenosine 3',5'-monophosphate (cAMP) production in HEK293 cells overexpressing GRK2. Compound 8h was further evaluated in a human stem cell-derived cardiomyocyte (HSC-CM) contractility assay and potentiated isoproterenol-induced beating rate in HSC-CMs.


  • Organizational Affiliation

    Discovery Sciences, Janssen Research & Development, L.L.C., Welsh & McKean Roads, Spring House, PA 19477, United States. Electronic address: gxu4@its.jnj.com.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-adrenergic receptor kinase 1640Homo sapiensMutation(s): 0 
Gene Names: GRK2ADRBK1BARKBARK1
EC: 2.7.11.15
UniProt & NIH Common Fund Data Resources
Find proteins for P25098 (Homo sapiens)
Explore P25098 
Go to UniProtKB:  P25098
PHAROS:  P25098
GTEx:  ENSG00000173020 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25098
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1339Homo sapiensMutation(s): 0 
Gene Names: GNB1
UniProt & NIH Common Fund Data Resources
Find proteins for P62873 (Homo sapiens)
Explore P62873 
Go to UniProtKB:  P62873
PHAROS:  P62873
GTEx:  ENSG00000078369 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62873
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2C [auth G]59Homo sapiensMutation(s): 0 
Gene Names: GNG2
UniProt & NIH Common Fund Data Resources
Find proteins for P59768 (Homo sapiens)
Explore P59768 
Go to UniProtKB:  P59768
PHAROS:  P59768
GTEx:  ENSG00000186469 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP59768
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
W4G (Subject of Investigation/LOI)
Query on W4G

Download Ideal Coordinates CCD File 
D [auth A]3-benzyl-7-(1H-pyrazol-4-yl)quinazolin-4(3H)-one
C18 H14 N4 O
GAVLIPSZXZKQHK-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
W4G BindingDB:  7K7Z Kd: 3330 (nM) from 1 assay(s)
IC50: 4100 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.207 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 194.679α = 90
b = 70.689β = 110.46
c = 111.503γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-10-28
    Type: Initial release
  • Version 1.1: 2020-11-04
    Changes: Database references
  • Version 1.2: 2024-03-06
    Changes: Data collection, Database references
  • Version 1.3: 2024-04-03
    Changes: Refinement description