Restriction enzymes: commercial source

All endonucleases bellow are isoschizomers
Recognition sequence (?): C'CCGG_G

Cfr9I

 Fermentas AB

TspMI

 New England Biolabs

XmaI

 SibEnzyme Ltd.
 New England Biolabs
 Promega Corporation
 Bangalore Genei
 MRC-Holland

XmaCI