GeneDesign's Enzyme Chooser module allows you to search and sort the restriction enzymes used by the program by a variety of criteria.
You can select enzymes by ends, site length (this does not count trailing
Ns), the presence of ambiguous bases, price, the presence or absence of specific
sequence in the recognition site, and whether or not the cleavage site is
internal to the recognition site.
The next screen will give you a copy-able sorted list of enzymes that match your criteria,
as well as an annotated list for your further edification.
