<;P>;PROBLEM TO BE SOLVED: To provide a translation enhancer in a gene expression control. <;P>;SOLUTION: The DNA is any one DNA having a base sequence with translation enhancer activity of (a) a DNA comprising a base sequence of a specific sequence, (b) a DNA comprising a base sequence of a specific sequence different from the DNA (a), (c) a DNA comprising a base sequence of a specific sequence different from the DNA (a) and the DNA (b), (d) a DNA comprising a base sequence of a specific sequence different from the DNA (a), the DNA (b) and the DNA (c), (e) a DNA comprising a base sequence that is a part continued to the base sequence of the DNA (a) and comprises a base sequence from 200 base length to 400 base length containing the base sequence of the DNA (d), (f) a DNA in which one or several bases are deleted, substituted or added in any one DNA from the DNA (a) to the DNA (e) and (g) a DNA that is hybridized with a DNA complementary to any one DNA from the DNA (a) to the DNA (e) under stringent conditions. <;P>;COPYRIGHT: (C)2011,JPO&INPIT