1. MTA-ELTE Complex Chemical Systems Research Group; H-1518 Budapest 112, P.O. Box 32 Hungary
2. Laboratory of Molecular Structure and Dynamics; Institute of Chemistry, Eötvös Loránd University; Pázmány Péter sétány 1/A Budapest H-1117 Hungary
3. Department Chemie und Pharmazie; Ludwig-Maximilians-Universität München; Butenandstraße 5-11 Munich D-81377 Germany
4. MTA-ELTE Protein Modeling Research Group, Institute of Chemistry, Eötvös Loránd University; H-1518 Budapest 112, P.O. Box 32 Hungary
5. Laboratory of Structural Chemistry and Biology; Institute of Chemistry, Eötvös Loránd University; Pázmány Péter sétány 1/A Budapest H-1117 Hungary