1. Institute for Academic Initiatives; Osaka University; 1-5 Yamadaoka Suita Osaka 565-0871 Japan
2. Exploratory Research for Advanced Technology (ERATO); Japan Science and Technology Agency (JST); 1-5 Yamadaoka Suita Osaka 565-0871 Japan
3. Department of Bioinformatics Engineering; Graduate School of Information Science and Technology; Osaka University; 1-5 Yamadaoka Suita Osaka 565-0871 Japan
4. Graduate School of Frontier Biosciences; Osaka University; 1-5 Yamadaoka Suita Osaka 565-0871 Japan