DNA fragment, recombinant vector containing the same and method for expressing foreign genes using the same

摘要

Disclosed is a novel DNA which can promote expression of foreign genes and which has a nucleotide sequence different from those of known DNAs that promote expression of foreign genes. The present invention provides an isolated DNA fragment having a nucleotide sequence shown in SEQ ID NO. 1 in Sequence Listing or having a nucleotide sequence which is the same as the nucleotide sequence shown in SEQ ID NO. 1 in Sequence Listing except that one or a plurality of nucleotides are added, inserted, deleted or substituted, the latter nucleotide sequence having a function to promote expression of a gene downstream thereof.