Restriction enzymes: commercial source

All endonucleases bellow are isoschizomers
Recognition sequence (?): G'TGCA_C

Alw44I

 Fermentas AB
 Nippon Gene Co., Ltd.

ApaLI

 Minotech Biotechnology
 Takara Shuzo Co. Ltd.
 New England Biolabs
 Bangalore Genei

VneI

 SibEnzyme Ltd.
 MRC-Holland