1. K. Takahashi and S. Moore, “The Enzymes,” 3rd Ed., Vol. 15, ed. by P. D. Boyer, Academic Press, Inc., New York, 1982, p. 435.
2. K. Takahashi, “Proteins: Structure and Function,” Vol. 1, ed. by M. Funatsu, K. Hiromi, K. Imahori, T. Murachi and K. Narita, Kodansha, Tokyo, 1972, p. 285.