| 释义 |
thiaminase
thiaminase (ˈθaɪəmɪnˌeɪz) n (Biochemistry) an enzyme that destroys thiamine and is often found in raw fishthiaminase
thiaminase [thi-am´ĭ-nās] an enzyme that catalyzes the splitting of thiamine into a pyrimidine and a thiazole derivative.thi·am·i·nase (thī-am'i-nās), 1. An enzyme present in raw fish that destroys thiamin and may produce thiamin deficiency in animals on a diet largely composed of raw fish. 2. A hydrolase cleaving thiamin into a pyrimidine moiety (that is, 2-methyl-4-amino-5-hydroxymethylpyrimidine) and a thiazole moiety (that is, 4-methyl-5-(2'-hydroxyethyl)thiazole); the pyrimidine moiety may appear in the urine as pyramin. Synonym(s): thiaminase II |