作者:Chi Neng A. Han、Chuzo Iwata、David E. Metzler
DOI:10.1021/jm00358a027
日期:1983.4
A phosphonate analogue of pyridoxal 5'-phosphate containing a 5'-phosphonomethyl group and its monoethyl and diethyl esters have been prepared. Except for the diethyl ester, the compounds appear to bind into the active site of aspartate aminotransferase. However, they lack detectable catalytic activity with this enzyme and with glutamate decarboxylase of Escherichia coli. The phosphonomethyl analogue
已经制备了含有5'-膦酰基甲基的吡ido醛5'-磷酸的膦酸酯类似物及其单乙酯和二乙酯。除二乙酯外,这些化合物似乎结合到天冬氨酸转氨酶的活性位点中。但是,它们缺乏该酶和大肠杆菌的谷氨酸脱羧酶的可检测催化活性。分光光度法观察结果表明,与天冬氨酸转氨酶结合的膦酰基甲基类似物确实会与底物缓慢反应。单甲酯的反应速度降低了约20倍。由于膦酸酯键的稳定性,这些化合物可用作各种蛋白质的修饰剂。