1. Center for In Silico Protein Science; Korea Institute for Advanced Study; Dongdaemun-gu Seoul 130-722 Korea
2. Center for Advanced Computation; Korea Institute for Advanced Study; Dongdaemun-gu Seoul 130-722 Korea
3. Korea Research Institute of Standards and Science (KRISS); Yuseong Daejeon 305-600 Korea
4. Department of Physics; University of Suwon; Hwaseong-Si Gyeonggi-do 445-743 Korea
5. School of Computational Sciences; Korea Institute for Advanced Study; Dongdaemun-gu Seoul 130-722 Korea