6ES0:
reference: Activation loop targeting strategy for design of receptor-interacting protein kinase 2 (RIPK2) inhibitors., Suebsuwong C, Pinkas DM, Ray SS, Bufton JC, Dai B, Bullock AN, Degterev A, Cuny GD, Bioorg Med Chem Lett. 2018 Feb 15;28(4):577-583. doi: 10.1016/j.bmcl.2018.01.044., Epub 2018 Jan 31. PMID: 29409752

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