A replicable plasmidic expression vector, capable of high levels of expression and secretion of polypeptides in a bacillus is disclosed. The vector contains a DNA sequence comprising the promoter and regulatory regions which control expression and secretion of proteases in a bacillus operably liked to a DNA sequence encoding the amino acid sequence of a polypeptide. The expression vector is particularly useful in the production of B. amyloliquefaciens proteases in B. subtilis. The method facilitates the isolation of proteases from various bacilli.
本发明公开了一种可复制的质粒表达载体,它能够在芽孢杆菌中高
水平地表达和分泌
多肽。该载体包含一个 DNA 序列,该 DNA 序列包含启动子和调控区,这些启动子和调控区可控制芽孢杆菌中
蛋白酶的表达和分泌,并与编码
多肽氨基酸序列的 DNA 序列可操作地结合在一起。该表达载体特别适用于在枯草杆菌中生产淀粉样芽孢杆菌
蛋白酶。该方法有助于从各种杆菌中分离
蛋白酶。