8-<i>O</i>-Methylsclerotiorinamine, Antagonist of the Grb2−SH2 Domain, Isolated from <i>Penicillium multicolor</i>
作者:Ji-Youn Nam、Hyae-Kyeong Kim、Ju-Young Kwon、Mi Young Han、Kwang-Hee Son、Un Chul Lee、Jung-Do Choi、Byoung-Mog Kwon
DOI:10.1021/np0001169
日期:2000.9.1
A new secondary metabolite, 8-O-methylsclerotiorinamine (1), was isolated from a strain of Penicillium multicolor, and its structure was established using NMR spectroscopy and chemical evidence. The metabolite inhibited significantly the binding between the Grb2-SH2 domain and the phosphopeptide derived from the Shc protein and also blocked the protein-protein interactions of Grb2-Shc in cell-based experiments, with IC50 values of 5.3 and 50 mu M, respectively.