作者:Qiang Jia、Tingwei Cai、Mingchuan Huang、Huiying Li、Ming Xian、Thomas L. Poulos、Peng G. Wang
DOI:10.1021/jm0340703
日期:2003.6.1
Because of the double-edged nature of NO, the development of isoform-selective NOS substrates is a highly desirable goal. Given the striking similarity in the heme active sites of the three NOS isoforms, it presents an challenging problem. Several N-aryl-N'-hydroxyguanidines have recently been shown as substrates that are selective for iNOS over nNOS. Here, we report the first success that 3 is a good
由于NO的双重优势,开发同工型选择性NOS底物是一个非常理想的目标。鉴于三种NOS亚型的血红素活性位点具有惊人的相似性,因此提出了一个具有挑战性的问题。最近已显示出几种N-芳基-N'-羟基胍作为对iNOS的选择性底物,而不是对nNOS的底物。在这里,我们报告的第一个成功是3是iNOS的nNOS(70%的NOHA活性,K(m)约为40 +/- 6 microM)的良好底物。