NEW TYROSINASE GENE melB

摘要

PROBLEM TO BE SOLVED: To obtain a new tyrosinase gene (melB) which has characteristics of developing by solid culture, is useful for preventing browning of Sake koji and discoloration of brewed food, with which the tyrosinase is produced by culturing the transformant of the gene and the tyrosinase is not only useful as a reagent but also for screening its inhibitor and which can be expected to develop a color protection substance. SOLUTION: Cloning of the new tyrosinase gene (melB) is carried out and its base sequence is determined. The cloned new gene is inserted into a vector to transform a host (Aspergillus oryjae).