6TI8

IRAK4 IN COMPLEX WITH inhibitor

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.250 

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Ligand Structure Quality Assessment 


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Literature

Improving metabolic stability and removing aldehyde oxidase liability in a 5-azaquinazoline series of IRAK4 inhibitors.

Degorce, S.L., Aagaard, A., Anjum, R., Cumming, I.A., Diene, C.R., Fallan, C., Johnson, T., Leuchowius, K.J., Orton, A.L., Pearson, S., Robb, G.R., Rosen, A., Scarfe, G.B., Scott, J.S., Smith, J.M., Steward, O.R., Terstiege, I., Tucker, M.J., Turner, P., Wilkinson, S.D., Wrigley, G.L., Xue, Y.

(2020) Bioorg Med Chem 28: 115815-115815

  • DOI: 10.1016/j.bmc.2020.115815
  • Primary Citation of Related Structures:  
    6THW, 6THX, 6THZ, 6TI8, 6TIA

  • PubMed Abstract: 

    • In this article, we report our efforts towards improving in vitro human clearance in a series of 5-azaquinazolines through a series of C4 truncations and C2 expansions. Extensive DMPK studies enabled us to tackle high Aldehyde Oxidase (AO) metabolism and unexpected discrepancies in human hepatocyte and liver microsomal intrinsic clearance ...

    In this article, we report our efforts towards improving in vitro human clearance in a series of 5-azaquinazolines through a series of C4 truncations and C2 expansions. Extensive DMPK studies enabled us to tackle high Aldehyde Oxidase (AO) metabolism and unexpected discrepancies in human hepatocyte and liver microsomal intrinsic clearance. Our efforts culminated with the discovery of 5-azaquinazoline 35, which also displayed exquisite selectivity for IRAK4, and showed synergistic in vitro activity against MyD88/CD79 double mutant ABC-DLBCL in combination with the covalent BTK inhibitor acalabrutinib.

    Organizational Affiliation: 

    Discovery Sciences, R&D, AstraZeneca, Gothenburg, SE-431 83 Mölndal, Sweden.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Interleukin-1 receptor-associated kinase 4A, B, C, D308Homo 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
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NWZ3
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NBW (Subject of Investigation/LOI)
Query on NBW
Download Ideal Coordinates CCD File 
E [auth A],
F [auth B],
G [auth C],
H [auth D]		~{N},~{N}-dimethyl-4-(1-methylcyclopropyl)oxy-2-[[1-(1-methylpiperidin-4-yl)pyrazol-4-yl]amino]pyrido[3,2-d]pyrimidine-6-carboxamide
C23 H30 N8 O2
LBHMENCKRXLUJV-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP		A, B, C, D L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO		A, B, C, D L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Binding Affinity Annotations 
IDSourceBinding Affinity
NBW Binding MOAD:  6TI8 IC50: 13 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.32 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.250 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 89.154α = 90
b = 110.532β = 90
c = 142.218γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
BUSTERrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

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Ligand Structure Quality Assessment 


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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