Mutant-type acetyltransferase Mpr1

摘要

The present invention provides a mutant-type acetyltransferase Mpr1: which comprises an amino acid sequence of a yeast wild-type Mpr1 represented by SEQ ID NO:1, wherein at least one amino acid at positions 63 to 65 and 117 of the amino acid sequence is substituted and said mutant-type acetyltransferase Mpr1 exhibits a higher antioxidant capacity than the wild-type Mpr1. The mutant-type acetyltransferase Mpr1 of the present invention exhibits a higher resistance to oxidative stress compared to the wild-type Mpr1. The present invention further provides a gene encoding the mutant-type Mpr1, a vector comprising the gene and a yeast transformed with the gene.