DNA AND AMINO ACID SEQUENCES OF A TYROSINE-INDUCIBLE TYROSINE AMMONIA LYASE ENZYME FROM THE YEAST TRICHOSPORON CUTANEUM

摘要

A novel tyrosine-inducible tyrosine ammonia lyase enzyme was isolated from the yeast Trichosporon cutaneum. This enzyme has a higher activity for tyrosine than for phenylalanine and is useful for the production of para-hydroxycinnamic acid directly from tyrosine. The gene encoding this enzyme was sequenced using 3' and 5' RACE cloning of the TAL cDNA and the gene was expressed in the yeast Saccharomyces cerevisiae and in the bacterium Escherichia coli.