Fig. 1
From: In vitro and in vivo characterization of the JAK1 selectivity of upadacitinib (ABT-494)
A. Upadacitinib modeled in the crystal structure of JAK1. A model of JAK1 complexed to upadacitinib is shown in blue. JAK2 (Protein Data Ban code: 2B7a) is overlaid in green (18). b. Chemical structure of (3S,4R)-3-ethyl-4-(3H-imidazo [1, 2-a] pyrrolo [2, 3-e] pyrazin-8-yl)-N-(2,2,2-trifluoroethyl) pyrrolidine-1-carboxamide (upadacitinib)