Taisho Pharmaceutical Co., Ltd.

Hitachi Software Engineering Company, Ltd.

Eiichi Soeda

Hisanori Nasu

Hiroaki Yoshida

Satoru Suzuki

Hiromitsu Yoshimura

Tomoichi Fukuda

An enhancer DNA segment having an excellent action of enhancing the transcriptional efficiency of an incorporated gene in a cell, said segment being derived from a human papovavirus BK mutant designated as pm411, pm522 or pm525. The enhancer DNA segment is useful for enhancing the expression of a gene encoding a biologically active substance in host eukaryotic cells.

Viral enhancer DNA segments

An input apparatus for entering base sequence information of the gene, comprises a computer for analyzing the base sequence of the gene, an input apparatus for entering base sequence information of the gene to the computer which successively stores the base sequence information entered by the input apparatus and produces the stored base sequence information, and a speech sounding apparatus supplied with the base sequence information produced from the computer for sounding speech corresponding to the base sequence information produced from the computer.

Input apparatus for entering base sequence information of the gene

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Mishima, Japan

Eiichi Soeda