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RIP2 Kinase Catalytic Domain complex with 5-Amino-1-Phenylpyrazole-4-Carboxamide.
Structural highlights
Function[RIPK2_HUMAN] Serine/threonine/tyrosine kinase that plays an essential role in modulation of innate and adaptive immune responses. Upon stimulation by bacterial peptidoglycans, NOD1 and NOD2 are activated, oligomerize and recruit RIPK2 through CARD-CARD domains. Once recruited, RIPK2 autophosphorylates and undergoes 'Lys-63'-linked polyubiquitination by E3 ubiquitin ligases BIRC2 and BIRC3. The polyubiquitinated protein mediates the recruitment of MAP3K7/TAK1 to IKBKG/NEMO and induces 'Lys-63'-linked polyubiquitination of IKBKG/NEMO and subsequent activation of IKBKB/IKKB. In turn, NF-kappa-B is released from NF-kappa-B inhibitors and translocates into the nucleus where it activates the transcription of hundreds of genes involved in immune response, growth control, or protection against apoptosis. Plays also a role during engagement of the T-cell receptor (TCR) in promoting BCL10 phosphorylation and subsequent NF-kappa-B activation.[1] [2] [3] [4] Publication Abstract from PubMedHerein we report the discovery of pyrazolocarboxamides as novel, potent, and kinase selective inhibitors of receptor interacting protein 2 kinase (RIP2). Fragment based screening and design principles led to the identification of the inhibitor series, and X-ray crystallography was used to inform key structural changes. Through key substitutions about the N1 and C5 N positions on the pyrazole ring significant kinase selectivity and potency were achieved. Bridged bicyclic pyrazolocarboxamide 11 represents a selective and potent inhibitor of RIP2 and will allow for a more detailed investigation of RIP2 inhibition as a therapeutic target for autoinflammatory disorders. Discovery of Pyrazolocarboxamides as Potent and Selective Receptor Interacting Protein 2 (RIP2) Kinase Inhibitors.,Haffner CD, Charnley AK, Aquino CJ, Casillas L, Convery MA, Cox JA, Elban MA, Goodwin NC, Gough PJ, Haile PA, Hughes TV, Knapp-Reed B, Kreatsoulas C, Lakdawala AS, Li H, Lian Y, Lipshutz D, Mehlmann JF, Ouellette M, Romano J, Shewchuk L, Shu A, Votta BJ, Zhou H, Bertin J, Marquis RW ACS Med Chem Lett. 2019 Oct 11;10(11):1518-1523. doi:, 10.1021/acsmedchemlett.9b00141. eCollection 2019 Nov 14. PMID:31749904[5] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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