AMP-DEAMINASE, SOM STAMMER FRA STREPTOMYCES OG BRUGEN DERAF

摘要

It is intended to provide a thermostable AMP deaminase originating in a microorganism. Namely, an AMP deaminase having the following characteristics. (1) Catalyzing the reaction: 5'-adenylic acid + H 2 O †’ 5'-inosinic acid + NH 3 ; (2) being stable at a temperature of 65°C or below (in an acetate buffer (pH 5.6)); (3) having a molecular weight of 48,000 ± 2,000 in gel filtration; and (4) having the optimum pH value at around 5.6 (in McIlvaine buffer).