[1] Japanese Assoc Complement Res, Tokyo, Japan
[2] Int Complement Soc, Tokyo, Japan
[3] Fukushima Prefectural Gen Hyg Inst, Fukushima, Japan
[4] Asahikawa Med Univ, Dept Microbiol & Immunochem, Asahikawa, Hokkaido, Japan
[5] Univ Calif Irvine, Dept Mol Biol & Biochem, Ayala Sch Biol Sci, Irvine, CA 92717 USA