6X3O
Co-structure of BTK kinase domain with L-005191930 inhibitor
Summary for 6X3O
| Entry DOI | 10.2210/pdb6x3o/pdb |
| Descriptor | Tyrosine-protein kinase BTK, 4-{8-amino-3-[(6R,8aS)-3-oxo-3,5,6,7,8,8a-hexahydroindolizin-6-yl]imidazo[1,5-a]pyrazin-1-yl}-3-methoxy-N-[4-(trifluoromethyl)pyridin-2-yl]benzamide, 4-[8-azanyl-3-[(2~{S})-1-[4-(dimethylamino)butanoyl]pyrrolidin-2-yl]imidazo[1,5-a]pyrazin-1-yl]-~{N}-(1,3-thiazol-2-yl)benzamide, ... (4 entities in total) |
| Functional Keywords | bruton tyrosine kinase inhibitor, transferase |
| Biological source | Homo sapiens (Human) |
| Total number of polymer chains | 2 |
| Total formula weight | 65364.93 |
| Authors | Fischmann, T.O. (deposition date: 2020-05-21, release date: 2020-07-22, Last modification date: 2024-03-06) |
| Primary citation | Liu, J.,Guiadeen, D.,Krikorian, A.,Gao, X.,Wang, J.,Babu Boga, S.,Alhassan, A.B.,Yu, W.,Selyutin, O.,Yu, Y.,Anand, R.,Xu, J.,Kelly, J.,Duffy, J.L.,Liu, S.,Yang, C.,Wu, H.,Cai, J.,Bennett, C.,Maloney, K.M.,Tyagarajan, S.,Gao, Y.D.,Fischmann, T.O.,Presland, J.,Mansueto, M.,Xu, Z.,Leccese, E.,Zhang-Hoover, J.,Knemeyer, I.,Garlisi, C.G.,Stivers, P.,Brandish, P.E.,Hicks, A.,Kim, R.,Kozlowski, J.A. Potent, non-covalent reversible BTK inhibitors with 8-amino-imidazo[1,5-a]pyrazine core featuring 3-position bicyclic ring substitutes. Bioorg.Med.Chem.Lett., 30:127390-127390, 2020 Cited by PubMed Abstract: Bruton's tyrosine kinase (BTK) is a Tec family kinase with a well-defined role in the B cell receptor (BCR) pathway. It has become an attractive kinase target for selective B cell inhibition, and for the treatment of B cell related diseases. Many BTK inhibitors have been discovered for the treatment of cancer and rheumatoid arthritis, including a series of BTK inhibitors based on 8-amino-imidazo[1,5-a]pyrazine we recently reported. The X-ray crystal structures of BTK with inhibitors were also published, which provided great help for the SAR design. Here we report our SAR work introducing ring constraints for the 3-position piperidine amides on the BTK inhibitors based on 8-amino-imidazo[1,5-a]pyrazine. This modification improved the potency in BTK inhibitions, as well as the PK profile and the off-target selectivity. The dose-dependent efficacy of two BTK inhibitors was observed in the rat collagen induced arthritis (CIA) model. PubMed: 32738973DOI: 10.1016/j.bmcl.2020.127390 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (1.9 Å) |
Structure validation
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