4neu
From Proteopedia
X-ray structure of Receptor Interacting Protein 1 (RIP1)kinase domain with a 1-aminoisoquinoline inhibitor
Structural highlights
FunctionRIPK1_HUMAN Serine-threonine kinase which transduces inflammatory and cell-death signals (programmed necrosis) following death receptors ligation, activation of pathogen recognition receptors (PRRs), and DNA damage. Upon activation of TNFR1 by the TNF-alpha family cytokines, TRADD and TRAF2 are recruited to the receptor. Ubiquitination by TRAF2 via 'Lys-63'-link chains acts as a critical enhancer of communication with downstream signal transducers in the mitogen-activated protein kinase pathway and the NF-kappa-B pathway, which in turn mediate downstream events including the activation of genes encoding inflammatory molecules. Polyubiquitinated protein binds to IKBKG/NEMO, the regulatory subunit of the IKK complex, a critical event for NF-kappa-B activation. Interaction with other cellular RHIM-containing adapters initiates gene activation and cell death. RIPK1 and RIPK3 association, in particular, forms a necrosis-inducing complex.[1] [2] [3] Publication Abstract from PubMedPotent inhibitors of RIP1 kinase from three distinct series, 1-aminoisoquinolines, pyrrolo[2,3-b]pyridines, and furo[2,3-d]pyrimidines, all of the type II class recognizing a DLG-out inactive conformation, were identified from screening of our in-house kinase focused sets. An exemplar from the furo[2,3-d]pyrimidine series showed a dose proportional response in protection from hypothermia in a mouse model of TNFalpha induced lethal shock. Discovery of Small Molecule RIP1 Kinase Inhibitors for the Treatment of Pathologies Associated with Necroptosis.,Harris PA, Bandyopadhyay D, Berger SB, Campobasso N, Capriotti CA, Cox JA, Dare L, Finger JN, Hoffman SJ, Kahler KM, Lehr R, Lich JD, Nagilla R, Nolte RT, Ouellette MT, Pao CS, Schaeffer MC, Smallwood A, Sun HH, Swift BA, Totoritis RD, Ward P, Marquis RW, Bertin J, Gough PJ ACS Med Chem Lett. 2013 Nov 4;4(12):1238-43. doi: 10.1021/ml400382p. eCollection , 2013 Dec 12. PMID:24900635[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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