6rn8
RIP2 Kinase Catalytic Domain complex with 2(4[(1,3benzothiazol5yl)amino]6(2methylpropane2sulfonyl)quinazolin7yl)oxy)ethyl phosphateRIP2 Kinase Catalytic Domain complex with 2(4[(1,3benzothiazol5yl)amino]6(2methylpropane2sulfonyl)quinazolin7yl)oxy)ethyl phosphate
Structural highlights
FunctionRIPK2_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 PubMedRIP2 kinase has been identified as a key signal transduction partner in the NOD2 pathway contributing to a variety of human pathologies, including immune-mediated inflammatory diseases. Small-molecule inhibitors of RIP2 kinase or its signaling partners on the NOD2 pathway that are suitable for advancement into the clinic have yet to be described. Herein, we report our discovery and profile of the prodrug clinical compound, inhibitor 3, currently in phase 1 clinical studies. Compound 3 potently binds to RIP2 kinase with good kinase specificity and has excellent activity in blocking many proinflammatory cytokine responses in vivo and in human IBD explant samples. The highly favorable physicochemical and ADMET properties of 3 combined with high potency led to a predicted low oral dose in humans. Discovery of a First-in-Class Receptor Interacting Protein 2 (RIP2) Kinase Specific Clinical Candidate, 2-((4-(Benzo[ d]thiazol-5-ylamino)-6-( tert-butylsulfonyl)quinazolin-7-yl)oxy)ethyl Dihydrogen Phosphate, for the Treatment of Inflammatory Diseases.,Haile PA, Casillas LN, Votta BJ, Wang GZ, Charnley AK, Dong X, Bury MJ, Romano JJ, Mehlmann JF, King BW, Erhard KF, Hanning CR, Lipshutz DB, Desai BM, Capriotti CA, Schaeffer MC, Berger SB, Mahajan MK, Reilly MA, Nagilla R, Rivera EJ, Sun HH, Kenna JK, Beal AM, Ouellette MT, Kelly M, Stemp G, Convery MA, Vossenkamper A, MacDonald TT, Gough PJ, Bertin J, Marquis RW J Med Chem. 2019 Jul 2. doi: 10.1021/acs.jmedchem.9b00575. PMID:31265286[5] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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