Thermo Scientific™

EcoRII (10 U/µL)

Catalog number:  ER1921

 Related applications:

Restriction Enzyme Cloning

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5'  C  C  W  G  G   3'
3'  G  G  W  C  C ↑ 5'

Thermo Scientific EcoRII restriction enzyme recognizes ^CCWGG sites and cuts best at 37°C in O buffer. See Reaction Conditions for Restriction Enzymes for a table of enzyme activity, conditions for double digestion, and heat inactivation for this and other restriction enzymes. Isoschizomers: AjnI, BseBI, Bst2UI, BstNI, BstOI, Psp6I, PspGI.

Thermo Scientific conventional restriction endonucleases are a large collection of high quality restriction enzymes, optimized to work in one of the buffers of the Five Buffer System. In addition, the universal Tango buffer is provided for convenience in double digestions. All of the enzymes exhibit 100% activity in the recommended buffer and reaction conditions. To ensure consistent performance, Thermo Scientific restriction enzyme reaction buffers contain premixed BSA, which enhances the stability of many enzymes and binds contaminants that sent in DNA preparations.


• Superior quality—stringent quality control and industry leading manufacturing process
• Convenient color-coded Five Buffer System
• Includes universal Tango buffer for double-digestions
• BSA premixed in reaction buffers
• Wide selection of restriction endonuclease specificities


• Molecular cloning
• Restriction site mapping
• Genotyping
• Southern blotting
• Restriction fragment length polymorphism (RFLP)

Note: At least two copies of EcoRII recognition site are required for efficient cleavage. For cleavage of DNA substrates with only one copy of recognition site MvaI, neoschizomer of EcoRII is recommended. EcoRII may remain associated with the cleaved DNA. This may cause DNA band shifting during electrophoresis. To avoid atypical DNA band patterns, use the 6X DNA Loading Dye & SDS Solution for sample preparation, or heat the digested DNA in the presence of SDS prior to electrophoresis. Assayed using pBR322 DNA (dcm-). EcoRII is blocked by overlapping dcm methylation. To avoid dcm methylation, use a dam-, dcm- strain, such as GM2163.For methylation sensitivity, refer to product specifications.
For Research Use Only. Not for use in diagnostic procedures.


Compatible Buffer: 10x Buffer O
Enzyme: EcoRII
Methylation Sensitivity: Not CpG methylation-sensitive, Not dam methylation-sensitive, dcm methylation-sensitive
Optimal Reaction Temperature: 37° C
Product Size: 200 units
Sensitive to Heat Inactivation: Yes


Manuals & protocols