| abstract |
Vectors having the following elements: (1) a promoter functioning in the host to be used, (2) a regulatory region for regulating the function of the promoter (1), and (3) a 5′-comparison derived from the cold shock protein gene mRNA A region that encodes a dock region, or a region that encodes a region formed by replacing, deleting, inserting, or adding a non-toxic region with at least one base. |