Does anyone know of a vendor for zymolyase to protoplast yeast with a reasonable price? The best we can find is ICN, which wants $380 for 250 mg. Failing that, is their a zymolyase alternative wwwith which to protoplast yeast? Thanks for your input. Bob Ludwig Prof. molecular biology & biochemistry Sinsheimer Laboratories University of California Santa Cruz, CA 95064 USA