Genome Informatics Laboratory • Nakamura Group

Promotion of DDBJ as an infrastructure database for lifescience



Research Summary

Ultra high-throughput sequencing technologies allow biologists to obtain larger amounts of nucleotide sequence data. Reliable database operation and high-quality annotation supply are essential. As the core part of DNA Data Bank of Japan (DDBJ), Nakamura laboratory attempts 1) to develop advanced database management systems, and 2) to improve quality of annotations in DDBJ databases. We have been constructing an automatic analytical system “DDBJ Read Annotation Pipeline” in NIG supercomputers, and “TogoAnnotation” system as the integrated support tool for manual curations. Structural and functional annotations by automatic and manual processing are evaluated by using proposed statistical methods.

A screenshot of reference mapping tools on a NGS automatic analytical system


Mashima, J., Kodama, Y., Fujisawa, T., Katayama, T., Okuda Y, Kaminuma, E., Ogasawara, O., Okubo, K., Nakamura, Y., and Takagi, T. (2017). DNA Data Bank of Japan. Nucleic Acids Res 45, D25-D31.

Shimizu, T., Kitajima, A., Nonaka, K., Yoshioka, T., Ohta, S., Goto, S., Toyoda, A., Fujiyama, A., Kaminuma, E., and Nakamura, Y. (2016). Hybrid origins of citrus varieties inferred from DNA marker analysis of nuclear and organelle genomes. PLoS One 11, e0166969.

Fujisawa, T., Narikawa, R., Maeda, S.I., Watanabe, S., Kanesaki, Y., Kobayashi, K., Nomata, J., Hanaoka, M., Watanabe, M., Ehira, S., Suzuki, E., Awai, K., and Nakamura, Y. (2017). CyanoBase: a large-scale update on its 20th anniversary. Nucleic Acids Res 45, D551-D554.

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