[1] Ruhr Univ Bochum, Med Proteom Ctr MPC, ZKF E-143,Univ Str 150, D-44801 Bochum, Germany
[2] European Bioinformat Inst EBI, EMBL Outstn, Cambridge, England
[3] Lund Univ LundU, Dept Theoret Phys, Lund, Sweden
[4] Lund Univ LundU, Dept Immunotechnol, Lund, Sweden