New England Biolabs (http://www.neb.com/) sells both Cac8I and SfcI.
Perhaps the others are isoschizomers of more common enzymes?
Delvac at eijkman.go.id (Delvac Oceandy) wrote:
>Could someone out there tell me where I can get/order these restriction
> - Hin 4 I
> - Rle A I
> - Cac 8 I
> - Ngo B I
> - Sfc I
>Eijkman Institute for Molecular Biology
>e-mail : delv at eijkman.go.id>URL : http://www.eijkman.go.id