The invention is related to phosphorus substituted anti-inflammatory compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.
An expanded allosteric network in PTP1B by multitemperature crystallography, fragment screening, and covalent tethering
作者:Daniel A Keedy、Zachary B Hill、Justin T Biel、Emily Kang、T Justin Rettenmaier、José Brandão-Neto、Nicholas M Pearce、Frank von Delft、James A Wells、James S Fraser
DOI:10.7554/elife.36307
日期:——
determination from hundreds of individual small-molecule fragment soaks. New modeling approaches reveal 'hidden' low-occupancy conformational states for protein and ligands. Our results converge on allosteric sites that are conformationally coupled to the active-site WPD loop and are hotspots for fragment binding. Targeting one of these sites with covalently tethered molecules or mutations allosterically inhibits
变构是蛋白质的固有特征,但揭示变构信号传播的机制仍然具有挑战性。更清楚地了解这种内在回路将为调节蛋白质功能提供新的机会。在这里,我们通过结合多温度 X 射线晶体学实验和数百个单独的小分子片段浸泡的结构测定,确定了蛋白质酪氨酸磷酸酶 1B (PTP1B) 中的变构位点。新的建模方法揭示了蛋白质和配体的“隐藏”低占有构象状态。我们的结果集中在构象耦合到活性位点 WPD 环的变构位点上,并且是片段结合的热点。用共价连接的分子或突变靶向这些位点之一会变构抑制酶活性。