8W3W image
Deposition Date 2024-02-22
Release Date 2024-05-01
Last Version Date 2024-10-30
Entry Detail
PDB ID:
8W3W
Keywords:
TRANSFERASE
Title:
Crystal structure of IRAK4 in complex with compound 4
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Spodoptera frugiperda
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.98 Å
R-Value Free:
0.21
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
C 1 2 1
8W3W validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Interleukin-1 receptor-associated kinase 4
Gene (Uniprot):IRAK4
Chain IDs:A, B, C, D
Chain Length:323
Number of Molecules:4
Biological Source:Homo sapiens
UniProt ID:Q9NWZ3 Pfam ID:PF07714
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
SEP A SER modified residue
TPO A THR modified residue
Ligand Molecules
A1AFO
Primary Citation
In Retrospect: Root-Cause Analysis of Structure-Activity Relationships in IRAK4 Inhibitor Zimlovisertib (PF-06650833).
Acs Med.Chem.Lett. 15 540 545 (2024)
PMID: 38628800 DOI: 10.1021/acsmedchemlett.4c00036

Abstact

In this paper, we disclose insights on the root causes of three structure-activity relationship (SAR) observations encountered in the discovery of the IRAK4 inhibitor Zimlovisertib (PF-06650833). The first is a nonlinear potency SAR encountered with the isoquinoline ether substituent, the second is a potency enhancement introduced by fluorine substitution on the lactam, and the third is a slight potency preference for all-syn (2S,3S,4S) stereochemistry in the fluorine-substituted lactam. We present new data that help to inform us of the origins of these unexpected SAR trends.

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Primary Citation of related structures
8W3W
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