[1] Max Planck Institute of Experimental Medicine,
[2] Neurogenetics,undefined
[3] Hermann-Rein-Str. 3,undefined
[4] 37075 Göttingen,undefined
[5] Germany,undefined
[6] Tel.: +49-5 51/38 99-7 10,undefined
[7] Fax: +49-5 51/38 99-7 58,undefined
[8] E-Mail: kirchhoff@em.mpg.de,undefined
[9] Institute for Physiological Chemistry,undefined
[10] University of Tübingen,undefined
[11] Hoppe-Seyler-Strasse 4,undefined
[12] 72076 Tübingen,undefined
[13] Germany,undefined
[14] Tel.: +49-70 71/2 97 33 34,undefined
[15] Fax: +49-70 71/29 53 60,undefined
[16] E-Mail: ralf.dringen@uni-tuebingen.de,undefined
[17] INSERM U114,undefined
[18] College de France 11,undefined
[19] 75231 Paris Cedex 05,undefined
[20] France,undefined
[21] Tel.: +33-1 44/27 12 22,undefined
[22] Fax: +33-1 44/27 12 60,undefined
[23] E-Mail: christian.giaume@college-de-france.fr,undefined