專利讓與公告

一種高活性之聚木醣酶之突變基因及其點突變方法，其係利用該點突變方法將一聚木醣酶之基因之第58個氨基酸由天門冬醯胺〔asparagine〕突變為天門冬胺酸〔aspartic acid〕，以形成該高活性之聚木醣酶之突變基因。藉此，可有效提高酵素活性並降低使用成本。

An isolated xylanase gene with mutations includes a fifty-eighth amino acid or a thirty-eighth amino acid generated from transforming asparagine to aspartic acid so as to form the isolated xylanase gene. A site-specific mutagenesis method includes: mutating the forty-first amino acid or the thirty-eighth amino acid of the xylanase gene by transforming asparagine to aspartic acid so as to form the isolated xylanase gene.