Restriction enzymes: commercial source

All endonucleases bellow are isoschizomers
Recognition sequence (?): CC'TNA_GG

AxyI

 Nippon Gene Co., Ltd.

Bse21I

 SibEnzyme Ltd.
 MRC-Holland

Bsu36I

 New England Biolabs
 Promega Corporation

Eco81I

 Fermentas AB
 Takara Shuzo Co. Ltd.