DNA encoding malolactic enzyme and/or malate permease enzyme

摘要

A DNA sequence comprising at least part of a gene encoding a malolactic enzyme and/or at least part of a gene encoding a malate permease enzyme is new, where the sequence comprises at least part of a defined 3001 bp sequence given in the specification. Also claimed are: (1) a vector that is capable of transforming a host cell and contains a DNA sequence as above; (2) a microorganism transformed with a DNA sequence or vector as above; and (3) a Saccharomyces cerevisiae strain capable of converting at least 80% of the malic acid present in wine must into lactic acid.