ISDA

Deposition Date 2023-01-25

Release Date 2023-04-26

Last Version Date 2024-06-19

Entry Detail

PDB ID:

8CBH

Keywords:

SIGNALING PROTEIN

Title:

SHP2 in complex with a novel allosteric inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.24 Å

R-Value Free:

0.26

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

P 1 21 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Tyrosine-protein phosphatase non-receptor type 11
Gene (Uniprot):PTPN11
Chain IDs:A, B
Chain Length:526
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:Q06124 Pfam ID:PF00017, PF00102 EC:3.1.3.48

Ligand Molecules

U70

Primary Citation

Discovery of a Novel Series of Imidazopyrazine Derivatives as Potent SHP2 Allosteric Inhibitors.

Torrente, E, Fodale, V, Ciammaichella, A, Ferrigno, F, Ontoria, J.M, Ponzi, S, Rossetti, I, Sferrazza, A, Amaudrut, J, Missineo, A, Esposito, S, Palombo, S, Nibbio, M, Cerretani, M, Bisbocci, M, Cellucci, A, di Marco, A, Alli, C, Pucci, V, Toniatti, C, Petrocchi, A, Torrente, E, Fodale, V, Ciammaichella, A, Ferrigno, F, Ontoria, J.M, Ponzi, S, Rossetti, I, Sferrazza, A, Amaudrut, J, Missineo, A, Esposito, S, Palombo, S, Nibbio, M, Cerretani, M, Bisbocci, M, Cellucci, A, di Marco, A, Alli, C, Pucci, V, Toniatti, C, Petrocchi, A, Petrocchi, A, Grillo, A, Ferrante, L, Randazzo, P, Prandi, A, De Matteo, M, Iaccarino, C, Bisbocci, M, Cellucci, A, Alli, C, Nibbio, M, Pucci, V, Amaudrut, J, Montalbetti, C, Toniatti, C, Di Fabio, R.Show

Acs Med.Chem.Lett. 14 156 162 (2023)

PMID: 36793438 DOI: 10.1021/acsmedchemlett.2c00454

Abstact

Protein tyrosine phosphatase SHP2 is an oncogenic protein that can regulate different cytokine receptor and receptor tyrosine kinase signaling pathways. We report here the identification of a novel series of SHP2 allosteric inhibitors having an imidazopyrazine 6,5-fused heterocyclic system as the central scaffold that displays good potency in enzymatic and cellular assays. SAR studies led to the identification of compound 8, a highly potent SHP2 allosteric inhibitor. X-ray studies showed novel stabilizing interactions with respect to known SHP2 inhibitors. Subsequent optimization allowed us to identify analogue 10, which possesses excellent potency and a promising PK profile in rodents.

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Primary Citation of related structures