Insights into kinetic mechanism of Janus kinase 3 and its inhibition by tofacitinib.

Abstract excerpt

JAK3 kinase plays a critical role in several cytokine signaling pathways involved in immune cell development and function. The studies presented in this report were undertaken to elucidate the kinetic mechanism of the JAK3 kinase domain, investigate the role of activation loop phosphorylation in regulating its catalytic activity, and examine its inhibition by the anti-rheumatoid arthritis drug, tofacitinib....

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