» Articles » PMID: 35590003

Reversible Lysine-targeted Probes Reveal Residence Time-based Kinase Selectivity

Abstract

The expansion of the target landscape of covalent inhibitors requires the engagement of nucleophiles beyond cysteine. Although the conserved catalytic lysine in protein kinases is an attractive candidate for a covalent approach, selectivity remains an obvious challenge. Moreover, few covalent inhibitors have been shown to engage the kinase catalytic lysine in animals. We hypothesized that reversible, lysine-targeted inhibitors could provide sustained kinase engagement in vivo, with selectivity driven in part by differences in residence time. By strategically linking benzaldehydes to a promiscuous kinase binding scaffold, we developed chemoproteomic probes that reversibly and covalently engage >200 protein kinases in cells and mice. Probe-kinase residence time was dramatically enhanced by a hydroxyl group ortho to the aldehyde. Remarkably, only a few kinases, including Aurora A, showed sustained, quasi-irreversible occupancy in vivo, the structural basis for which was revealed by X-ray crystallography. We anticipate broad application of salicylaldehyde-based probes to proteins that lack a druggable cysteine.

Citing Articles

Site-specific molecular glues for the 14-3-3/Tau pS214 protein-protein interaction reversible covalent imine tethering.

Oberheide A, van den Oetelaar M, Scheele J, Borggrafe J, Engelen S, Sattler M RSC Med Chem. 2025; .

PMID: 40070456 PMC: 11892739. DOI: 10.1039/d4md00833b.


Proteomic Ligandability Maps of Phosphorus(V) Stereoprobes Identify Covalent TLCD1 Inhibitors.

Sharma H, Bielecki M, Holm M, Thompson T, Yin Y, Cravatt J bioRxiv. 2025; .

PMID: 39975370 PMC: 11838393. DOI: 10.1101/2025.01.31.635883.


Covalent Proximity Inducers.

London N Chem Rev. 2024; 125(1):326-368.

PMID: 39692621 PMC: 11719315. DOI: 10.1021/acs.chemrev.4c00570.


Mutant-selective AKT inhibition through lysine targeting and neo-zinc chelation.

Craven G, Chu H, Sun J, Carelli J, Coyne B, Chen H Nature. 2024; 637(8044):205-214.

PMID: 39506119 DOI: 10.1038/s41586-024-08176-4.


Tying the knot with lysine.

Koperniku A, Meanwell N Nat Rev Chem. 2024; 8(4):235-237.

PMID: 38499680 DOI: 10.1038/s41570-024-00592-4.


References
1.
Honigberg L, Smith A, Sirisawad M, Verner E, Loury D, Chang B . The Bruton tyrosine kinase inhibitor PCI-32765 blocks B-cell activation and is efficacious in models of autoimmune disease and B-cell malignancy. Proc Natl Acad Sci U S A. 2010; 107(29):13075-80. PMC: 2919935. DOI: 10.1073/pnas.1004594107. View

2.
Byrd J, Furman R, Coutre S, Flinn I, Burger J, Blum K . Targeting BTK with ibrutinib in relapsed chronic lymphocytic leukemia. N Engl J Med. 2013; 369(1):32-42. PMC: 3772525. DOI: 10.1056/NEJMoa1215637. View

3.
Finlay M, Anderton M, Ashton S, Ballard P, Bethel P, Box M . Discovery of a potent and selective EGFR inhibitor (AZD9291) of both sensitizing and T790M resistance mutations that spares the wild type form of the receptor. J Med Chem. 2014; 57(20):8249-67. DOI: 10.1021/jm500973a. View

4.
Janne P, Yang J, Kim D, Planchard D, Ohe Y, Ramalingam S . AZD9291 in EGFR inhibitor-resistant non-small-cell lung cancer. N Engl J Med. 2015; 372(18):1689-99. DOI: 10.1056/NEJMoa1411817. View

5.
Lanman B, Allen J, Allen J, Amegadzie A, Ashton K, Booker S . Discovery of a Covalent Inhibitor of KRAS (AMG 510) for the Treatment of Solid Tumors. J Med Chem. 2019; 63(1):52-65. DOI: 10.1021/acs.jmedchem.9b01180. View