申请人:——
公开号:US07531646B2
公开(公告)日:2009-05-12
This invention provides a method of detecting enzyme activity on a solid medium. The enzyme substrate has a chromogenic portion comprising a catechol residue, in which a derivitising moiety is linked to the aromatic ring of the catechol via a bond, and an enzyme cleavable group which is attached via an ester or ether linkage to the oxygen atom derived from a hydroxyl group of the catechol residue. If the enzyme substrate contacts an enzyme capable of cleaving the enzyme cleavable groups and the cleaved compound contacts a chelatable metal ion, a substantially non-diffusable coloured precipitate is formed.
这项发明提供了一种在固体介质上检测酶活性的方法。酶底物具有一个含有邻苯二酚残基的显色部分,其中一个衍生基团通过键连接到邻苯二酚的芳香环上,另一个酶可切割的基团通过酯或醚键连接到邻苯二酚残基的羟基氧原子上。如果酶底物接触到能够切割酶可切割基团的酶,并且被切割的化合物接触到可螯合的金属离子,就会形成一种基本不可扩散的有色沉淀物。