7LQ1 image
Deposition Date 2021-02-12
Release Date 2022-02-16
Last Version Date 2024-04-03
Entry Detail
PDB ID:
7LQ1
Keywords:
TRANSFERASE
Title:
HUMAN PI3KDELTA IN COMPLEX WITH COMPOUND 28
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Spodoptera frugiperda
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.96 Å
R-Value Free:
0.28
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 21 21 21
7LQ1 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform
Gene (Uniprot):PIK3CD
Chain IDs:A
Chain Length:1044
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:O00329 Pfam ID:PF02192, PF00794, PF00792, PF00613, PF00454 EC:2.7.1.137
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Phosphatidylinositol 3-kinase regulatory subunit alpha
Gene (Uniprot):PIK3R1
Chain IDs:B
Chain Length:169
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P27986 Pfam ID:PF16454 EC:2.7.1.153
Ligand Molecules
CL
YA7
Primary Citation
Discovery of a new series of PI3K-delta inhibitors from Virtual Screening.
Bioorg.Med.Chem.Lett. 42 128046 128046 (2021)
PMID: 33865969 DOI: 10.1016/j.bmcl.2021.128046

Abstact

PI3K-δ mediates key immune cell signaling pathways and is a target of interest for treatment of oncological and immunological disorders. Here we describe the discovery and optimization of a novel series of PI3K-δ selective inhibitors. We first identified hits containing an isoindolinone scaffold using a combined ligand- and receptor-based virtual screening workflow, and then improved potency and selectivity guided by structural data and modeling. Careful optimization of molecular properties led to compounds with improved permeability and pharmacokinetic profile, and high potency in a whole blood assay.

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Primary Citation of related structures
7LQ1