-- Krzysztof Murzyn Department of Biophysics Institute of Molecular Biology Jagiellonian University Al. Mickiewicza 3 31-120 Krakow tel +(48-12)-634-13-55, ext. 213 fax +(48-12)-633-69-07 email murzyn_at_mol.uj.edu.plReceived on Fri Nov 12 1999 - 04:55:58 PST