Discovery of Novel Hydroxamates as Highly Potent Tumor Necrosis Factor-α Converting Enzyme Inhibitors: Part I—Discovery of Two Binding Modes
作者:Zhaoning Zhu、Robert Mazzola、Lisa Sinning、Brian McKittrick、Xiaoda Niu、Daniel Lundell、Jing Sun、Peter Orth、Zhuyan Guo、Vincent Madison、Richard Ingram、Brian M. Beyer
DOI:10.1021/jm070376o
日期:2008.2.1
crystallography of the inhibitors binding to the TACE enzyme demonstrates that each series derives its activity from the opposite enantiomer of the cyclopropyl scaffolds, which display almost superimposable hydroxamate groups that coordinate to the zinc at the catalytic site. Mode A inhibitors occupy the S1'-S3' binding pockets, whereas mode B resides in the nonprime binding sites.
通过从头设计方法,研究了从反式环丙基二羧酸盐衍生的异羟肟酸酯作为潜在的TNF-α转化酶(TACE)抑制剂。鉴定出两种独特的抑制剂系列(A和B),尽管它们在结构上有相似之处,但它们对其他基质金属蛋白酶具有不同的构效关系趋势和选择性。与TACE酶结合的抑制剂的X射线晶体学分析表明,每个系列的活性均来自环丙基支架的对映异构体,该对映体显示出几乎重叠的异羟肟酸酯基团,这些基团与催化位点上的锌配位。模式A抑制剂占据S1'-S3'结合口袋,而模式B位于非主要结合位点。