HIGH-COPY-NUMBER, HIGH-EXPRESSION VECTOR HAVING METHIONINE AMINOPEPTIDASE GENE THEREIN

摘要

Disclosed is a high-copy-number, high-expression vector capable of producing a protein having a satisfactory function/activity in the same level as that of a natural form of the protein, in a large quantity and in a simple manner. A vector having (A) a target gene or a cloning site of the target gene, (B) a sequence element necessary for the high copying of the target gene, (C) a sequence element necessary for the expression of the target gene and a methionine aminopeptidase gene; a method for producing the vector; a transformant having the vector introduced therein; and a process for producing a protein using the transformant.