Protein Superfamily Database (Prosup). - Katsuhisa Horimoto; Kunio Oshima; Akira Tsugita; Jinya Otsuka (CODATA, 1994)

A comprehensive representation of extensive similarity linkage between large numbers of proteins. - Hidemi Watanabe; Jinya Otsuka (Comput. Appl. Biosci., 1995)

A method for comparing circular genomes from gene locations: application to mitochondrial genomes. - Katsuhisa Horimoto; Mikita Suyama; Hiroyuki Toh; Kentaro Mori; Jinya Otsuka (Bioinform., 1998)