Title : Discovery and structural characterization of peficitinib (ASP015K) as a novel and potent JAK inhibitor.

Pub. Date : 2018 Oct 1

PMID : 30145050






3 Functional Relationships(s)
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1 Here, we describe the identification of the novel orally bioavailable JAK inhibitor 18, peficitinib (also known as ASP015K), which showed moderate selectivity for JAK3 over JAK1, JAK2, and TYK2 in enzyme assays. peficitinib Janus kinase 3 Homo sapiens
2 Furthermore, we determined the crystal structures of JAK1, JAK2, JAK3, and TYK2 in a complex with peficitinib, and revealed that the 1H-pyrrolo[2,3-b]pyridine-5-carboxamide scaffold of peficitinib forms triple hydrogen bonds with the hinge region. peficitinib Janus kinase 3 Homo sapiens
3 Interestingly, the binding modes of peficitinib in the ATP-binding pockets differed among JAK1, JAK2, JAK3, and TYK2. peficitinib Janus kinase 3 Homo sapiens