Nucleoside hydrolase and nucleoside phosphorylase detection kits, dipsticks and substrates
申请人:Albert Einstein College of Medicine of Yeshiva University
公开号:US06764829B2
公开(公告)日:2004-07-20
The invention relates to a method of detecting and/or assaying nucleoside hydrolases or nucleoside phosphorylases using a chromogenic substrate. Preferred chromogenic substrates have formula (I) where X is OH, or H, and Y is the residue of Y—OH where Y—OH is a chromophore or a compound readily converted to a chromophore and the substrates are hydrolyzed by the nucleoside hydrolase to yield ribose or 2-deoxyribose plus Y—OH. Alternatively, those substrates may be phosphorylysed by nucleoside phosphorylase to yield ribose-1-phosphate plus Y—OH. The methods may be used to detect and/or assay parasites in biological samples.
本发明涉及一种使用显色底物检测和/或测定核苷水解酶或核苷酸磷酸酶的方法。首选的显色底物具有公式(I),其中X为OH或H,Y为Y-OH残基,其中Y-OH是一种色团或易于转化为色团的化合物,这些底物被核苷水解酶水解,产生核糖或2-去氧核糖加上Y-OH。或者,这些底物可以被核苷酸磷酸酶磷酸化,产生核糖-1-磷酸加上Y-OH。该方法可用于检测和/或测定生物样品中的寄生虫。