Expanding the Diversity of Allosteric Bcr-Abl Inhibitors
作者:Xianming Deng、Barun Okram、Qiang Ding、Jianming Zhang、Yongmun Choi、Francisco J. Adrián、Amy Wojciechowski、Guobao Zhang、Jianwei Che、Badry Bursulaya、Sandra W. Cowan-Jacob、Gabriele Rummel、Taebo Sim、Nathanael S. Gray
DOI:10.1021/jm100555f
日期:2010.10.14
Inhibition of Bcr-Abl kinaseactivity by imatinib for the treatment of chronic myeloid leukemia (CML) currently serves as the paradigm for targeting dominant oncogenes with small molecules. We recently reported the discovery of GNF-2 (1) and GNF-5 (2) as selective non-ATP competitive inhibitors of cellular Bcr-Abl kinaseactivity that target the myristate binding site. Here, we used cell-based structure−activity
Binding or Bending: Distinction of Allosteric Abl Kinase Agonists from Antagonists by an NMR-Based Conformational Assay
作者:Wolfgang Jahnke、Robert M. Grotzfeld、Xavier Pellé、André Strauss、Gabriele Fendrich、Sandra W. Cowan-Jacob、Simona Cotesta、Doriano Fabbro、Pascal Furet、Jürgen Mestan、Andreas L. Marzinzik
DOI:10.1021/ja101837n
日期:2010.5.26
that the conformational state of C-terminal helix_I is a structural determinant for functional activity. We present an NMR-based conformational assay to monitor the conformation of this crucial helix_I and show that myristate ligands that bend helix_I are functional antagonists, whereas ligands that bind to the myristate pocket but do not induce this conformational change are kinase agonists. Activation