申请人:Asymchem Life Science (Tianjin) Co., Ltd.
公开号:EP3677674A1
公开(公告)日:2020-07-08
Disclosed are transaminase mutants and use thereof. The amino acid sequence of the transaminase mutant is obtained by the mutation of the amino acid sequence as shown in SEQ ID NO: 1, and the mutation at least comprises one of the following mutation sites: the 19-th site, the 41-th site, the 43-th site, the 72-th site, the 76-th site, the 92-th site, the 107-th site, the 125-th site, the 132-th site, the 226-th site, the 292-th site, the 295-th site, the 308-th site, and the 332-th site; and the 19-th site is mutated into a serine, the 41-th site is mutated into a serine, the 43-th site is mutated into an asparagine, a glycine in the 72-th site is mutated into a leucine, etc.; or the amino acid sequence of the transaminase mutant has the mutation sites in the mutanted amino acid sequence, and has more than 80% homology to the mutanted amino acid sequence.
公开了转氨酶突变体及其用途。转氨酶突变体的氨基酸序列是通过突变 SEQ ID NO: 1 所示的氨基酸序列获得的,该突变至少包括以下突变位点中的一个:第 19 位点、第 41 位点、第 43 位点、第 72 位点、第 76 位点、第 92 位点、第 107 位点、第 125 位点、第 132 位点、第 226 位点、第 292 位点、第 295 位点、第 308 位点和第 332 位点;第 19 位点突变为丝氨酸,第 41 位点突变为丝氨酸,第 43 位点突变为天冬酰胺,第 72 位点中的甘氨酸突变为亮氨酸等。或转氨酶突变体的氨基酸序列具有突变氨基酸序列中的突变位点,并且与突变氨基酸序列的同源性超过 80%。