申请人:Suzuki Shunichi
公开号:US20080241895A1
公开(公告)日:2008-10-02
The present invention provides genes that encode the N-acetyl-(R,S)-β-amino acid acylases. The N-acetyl-(R,S)-β-amino acid acylases were isolated and purified from bacterial cells and the nucleotide sequences were determined. A host, such as
Escherichia coli
, was used to construct a high-expression system for these genes. The N-acetyl-(R)-β-amino acid acylase produced by
Burkholderia
sp. AJ110349 (FERM BP-10366) includes, for example, the protein having the amino acid sequence shown in SEQ. ID. NO. 8. The gene encoding this enzyme includes, for example, the DNA having the nucleotide sequence as shown in SEQ. ID. NO. 7. The N-acetyl-(S)-β-amino acid acylase produced by
Burkholderia
sp. AJ110349 (FERM BP-10366) includes, for example, the protein having the amino acid sequence shown in SEQ. ID. NO. 10. The gene encoding this enzyme includes, for example, the DNA having the nucleotide sequence shown inshown in SEQ. ID. NO. 9. The N-acetyl-(R)-β-amino acid acylase produced by
Variovorax
sp. AJ110348 (FERM BP-10367) includes, for example, the protein comprised of the amino acid sequence shown in SEQ. ID. NO. 12. The gene encoding this enzyme includes, for example, the DNA having the nucleotide sequence shown inshown in SEQ. ID. NO. 11.
本发明提供了编码N-乙酰-(R,S)-β-氨基酸酰化酶的基因。N-乙酰-(R,S)-β-氨基酸酰化酶从细菌细胞中分离和纯化,并确定了核苷酸序列。宿主,例如大肠杆菌,被用于构建这些基因的高表达系统。Burkholderia sp. AJ110349 (FERM BP-10366)产生的N-乙酰-(R)-β-氨基酸酰化酶,例如包括具有SEQ. ID. NO. 8所示的氨基酸序列的蛋白质。编码这种酶的基因,例如包括具有SEQ. ID. NO. 7所示的核苷酸序列的DNA。Burkholderia sp. AJ110349 (FERM BP-10366)产生的N-乙酰-(S)-β-氨基酸酰化酶,例如包括具有SEQ. ID. NO. 10所示的氨基酸序列的蛋白质。编码这种酶的基因,例如包括具有SEQ. ID. NO. 9所示的核苷酸序列的DNA。Variovorax sp. AJ110348 (FERM BP-10367)产生的N-乙酰-(R)-β-氨基酸酰化酶,例如包括由SEQ. ID. NO. 12所示的氨基酸序列组成的蛋白质。编码这种酶的基因,例如包括具有SEQ. ID. NO. 11所示的核苷酸序列的DNA。