ISDA

Deposition Date 2024-08-07

Release Date 2025-01-15

Last Version Date 2025-02-05

Entry Detail

PDB ID:

9D11

Keywords:

GENE REGULATION

Title:

Smarca2 Bromodomain in complex with compound 22

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.68 Å

R-Value Free:

0.20

R-Value Work:

0.17

R-Value Observed:

0.17

Space Group:

P 31

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Isoform Short of Probable global transcription activator SNF2L2
Gene (Uniprot):SMARCA2
Chain IDs:A, B, C
Chain Length:124
Number of Molecules:3
Biological Source:Homo sapiens

UniProt ID:P51531 Pfam ID:PF00439

Ligand Molecules

A1A1O

ACT

EDO

Primary Citation

Discovery of High-Affinity SMARCA2/4 Bromodomain Ligands and Development of Potent and Exceptionally Selective SMARCA2 PROTAC Degraders.

Leng, L, Tu, W, Yang, L, Huang, L, Wang, M, Meagher, J.L, Chinnaswamy, K, Allu, S.R, Rej, R.K, Tosovic, J, Harikrishnan, L, Li, Z, Sui, Z, Stuckey, J.A, Wang, S.Show

J.Med.Chem. 68 1113 1133 (2025)

PMID: 39745064 DOI: 10.1021/acs.jmedchem.4c01903

Abstact

In the SWI/SNF chromatin-remodeling complex, the mutually exclusive catalytic ATPase subunits SMARCA2 and SMARCA4 proteins have a synthetic-lethal relationship. Selectively targeting SMARCA2 for degradation is a promising and new therapeutic strategy for human cancers harboring inactivated mutated SMARCA4. In this study, we report the design, synthesis, and biological evaluation of novel SMARCA2/4 ligands and our subsequent design of PROTAC degraders using high-affinity SMARCA ligands and VHL-1 ligands. Our efforts led to the discovery of high-affinity SMARCA2/4 bromodomain ligands and the development of a potent and selective SMARCA2 degrader and a highly potent SMARCA2/4 and PBRM1 degrader.

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