Hitachi Software Engineering Company, Ltd.

Hitachi Device Engineering Co., Ltd.

Toshitsugu Okayama

Hisanori Nasu

Hitoshi Fujimiya

Norio Maru

Shinichiro Yamamoto

Yoshiaki Aoki

The gene database retrieval system, for making a retrieval for a gene sequence having a sequence similar to a sequence data from a gene database, contains a gene database for storing the sequence data of genes whose structures or sequences have already been analyzed and identified, a dynamic programming operation unit for determining the degree of similarity between target data and key data by utilizing the sequence data of the bases of the gene from the gene database as the target data and the sequence data of the bases as the key for retrieval, and a central processing device unit for executing the access process to make access to the gene database, in parallel to the operation process for determining the degree of similarity by transmitting the sequence data of the bases from the gene database continually one after another into the dynamic programming operation unit as the target data, by controlling the gene database and the dynamic programming operation unit.

Gene database retrieval system where a key sequence is compared to

A DNA sequence transcribing method involves labeling a DNA fragment with a fluorescent substance, subjecting the labeled fragments to electrophoresis, exposing a gel containing the DNA fragment to light during electrophoresis, and detecting fluorescence generated upon exposure. An image corresponding to a fluorescent image on the gel is transcribed on a recording medium by entering a detecting signal in synchronization with operation of detecting fluorescence on the gel containing the DNA fragment after electrophoresis. This arrangement enables a crude fluorescent image on the gel containing the DNA fragment to be recorded as an intact image of the DNA sequencing on the basis of the fluorescent method, and the image can be retained.

Method for transcription of a DNA sequence

The edit processing includes band deletion processing and band addition processing for correcting the DNA pattern image. Additionally, a concentration graph display indicative of a distribution of concentration of the DNA pattern is provided.

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Yokohama, Japan

Toshitsugu Okayama