4IVA

JAK2 kinase (JH1 domain) in complex with the inhibitor TRANS-4-[(8AS)-2-[(1R)-1-HYDROXYETHYL]IMIDAZO[4,5-D]PYRROLO[2,3-B]PYRIDIN-1(8AH)-YL]CYCLOHEXANECARBONITRILE

4IVA の概要

• エントリーDOI: 10.2210/pdb4iva/pdb
• 関連するPDBエントリー: 4IVB 4IVC 4IVD
• 分子名称: Tyrosine-protein kinase JAK2, trans-4-{2-[(1R)-1-hydroxyethyl]imidazo[4,5-d]pyrrolo[2,3-b]pyridin-1(6H)-yl}cyclohexanecarbonitrile (3 entities in total)
• 機能のキーワード: protein kinase, phosphotransfer, transferase-transferase inhibitor complex, transferase/transferase inhibitor
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Endomembrane system; Peripheral membrane protein (By similarity): O60674
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 35651.49

構造登録者

Eigenbrot, C.,Shia, S. (登録日: 2013-01-22, 公開日: 2013-05-22, 最終更新日: 2024-11-20)

主引用文献

Zak, M.,Hurley, C.A.,Ward, S.I.,Bergeron, P.,Barrett, K.,Balazs, M.,Blair, W.S.,Bull, R.,Chakravarty, P.,Chang, C.,Crackett, P.,Deshmukh, G.,Devoss, J.,Dragovich, P.S.,Eigenbrot, C.,Ellwood, C.,Gaines, S.,Ghilardi, N.,Gibbons, P.,Gradl, S.,Gribling, P.,Hamman, C.,Harstad, E.,Hewitt, P.,Johnson, A.,Johnson, T.,Kenny, J.R.,Koehler, M.F.,Bir Kohli, P.,Labadie, S.,Lee, W.P.,Liao, J.,Liimatta, M.,Mendonca, R.,Narukulla, R.,Pulk, R.,Reeve, A.,Savage, S.,Shia, S.,Steffek, M.,Ubhayakar, S.,van Abbema, A.,Aliagas, I.,Avitabile-Woo, B.,Xiao, Y.,Yang, J.,Kulagowski, J.J.
Identification of C-2 Hydroxyethyl Imidazopyrrolopyridines as Potent JAK1 Inhibitors with Favorable Physicochemical Properties and High Selectivity over JAK2.
J.Med.Chem., 56:4764-4785, 2013

PubMed Abstract: Herein we report on the structure-based discovery of a C-2 hydroxyethyl moiety which provided consistently high levels of selectivity for JAK1 over JAK2 to the imidazopyrrolopyridine series of JAK1 inhibitors. X-ray structures of a C-2 hydroxyethyl analogue in complex with both JAK1 and JAK2 revealed differential ligand/protein interactions between the two isoforms and offered an explanation for the observed selectivity. Analysis of historical data from related molecules was used to develop a set of physicochemical compound design parameters to impart desirable properties such as acceptable membrane permeability, potent whole blood activity, and a high degree of metabolic stability. This work culminated in the identification of a highly JAK1 selective compound (31) exhibiting favorable oral bioavailability across a range of preclinical species and robust efficacy in a rat CIA model.

PubMed: 23659214
DOI: 10.1021/jm4004895

実験手法

X-RAY DIFFRACTION (1.5 Å)