4ZTN

Irak4-inhibitor co-structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.210 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Discovery and Structure Enabled Synthesis of 2,6-Diaminopyrimidin-4-one IRAK4 Inhibitors.

Seganish, W.M.Fischmann, T.O.Sherborne, B.Matasi, J.Lavey, B.McElroy, W.T.Tulshian, D.Tata, J.Sondey, C.Garlisi, C.G.Devito, K.Fossetta, J.Lundell, D.Niu, X.

(2015) ACS Med Chem Lett 6: 942-947

  • DOI: https://doi.org/10.1021/acsmedchemlett.5b00279
  • Primary Citation of Related Structures:  
    4ZTL, 4ZTM, 4ZTN

  • PubMed Abstract: 

    We report the identification and synthesis of a series of aminopyrimidin-4-one IRAK4 inhibitors. Through high throughput screening, an aminopyrimidine hit was identified and modified via structure enabled design to generate a new, potent, and kinase selective pyrimidin-4-one chemotype. This chemotype is exemplified by compound 16, which has potent IRAK4 inhibition activity (IC50 = 27 nM) and excellent kinase selectivity (>100-fold against 99% of 111 tested kinases), and compound 31, which displays potent IRAK4 activity (IC50 = 93 nM) and good rat bioavailability (F = 42%).


  • Organizational Affiliation

    Discovery Chemistry, Structural Sciences, Computational Chemistry, In Vitro Pharmacology, and Respiratory and Immunology, Merck Research Laboratories , 2015 Galloping Hill Road, Kenilworth, New Jersey 07033, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Interleukin-1 receptor-associated kinase 4
A, B, C, D
301Homo sapiensMutation(s): 0 
Gene Names: IRAK4
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NWZ3 (Homo sapiens)
Explore Q9NWZ3 
Go to UniProtKB:  Q9NWZ3
PHAROS:  Q9NWZ3
GTEx:  ENSG00000198001 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NWZ3
Sequence Annotations
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.210 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.89α = 90
b = 139.18β = 125.28
c = 87.6γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
BUSTERrefinement
PDB_EXTRACTdata extraction
Omodel building
BUSTER-TNTphasing
XDSdata reduction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-02
    Type: Initial release
  • Version 1.1: 2023-09-27
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.2: 2024-11-13
    Changes: Structure summary