[1] Med Sch Hannover, Inst Pharmacol, D-30625 Hannover, Germany
[2] Univ Tubingen, Inst Med Microbiol & Hyg, D-72076 Tubingen, Germany
[3] Nagoya Univ, Inst Adv Res, Grad Sch Sci, Dept Mol Biol, Nagoya, Aichi, Japan
[4] Japan Sci & Technol Corp, CREST, Nagoya, Aichi 4648602, Japan
[5] Toyama Univ, Ctr Excellence COE Program, Inst Nat Med, Div Pathogen Biochem, Toyama 9300194, Japan
[6] Med Sch Hannover, Inst Biochem, D-30625 Hannover, Germany