***** To join, leave or search the confocal microscopy listserv, go to: http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy ***** Hello, I am working with GFP2-YFP FRET pairs and would like to do some concentration studies- has anyone encountered purified GFP2 able to be purchased? (Such as here: http://www.biovision.com/fluorescent-proteins-1166/ ). Many thanks, Jess Holz