I don't know if it's a coincidence, but I got a nice reply from Clontech
shortly after posting this. Thanks to everyone for your help.
jamie
--
Jamie White
Light Microscopy Group
Cell Biophysics Programme
European Molecular Biology Laboratory
Meyerhofstrasse 1, Postfach 10.2209
D-69117 Heidelberg Germany
+49 6221 / 387 367 voice
+49 6221 / 387 242 fax
finger jwhite at phenix.embl-heidelberg.de
