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Restriction Enzymes

 

   

 

 

NcoI
 

 

NcoI is a restriction enzyme which recognizes the following sequence:

CCATG G
G GTACC

Concentration

 

10u/μl

 

Reaction condition Recommended Buffer: Y+/TANGO™
33mM Tris-acetate (pH 7.9), 10mM Mg-acetate, 66mM K-acetate and 0.1mg/ml BSA.
Incubation temperature: 37°C
Thermal inactivation: 65°C
 
Source

 

Nocardia corallina.

 

Frequency of Cutting

 

λAd-2ΦX174pUC18M13mp18pBR322

4200000

 

Storage

 

-20°C

 

Storage buffer

 

10mM Tris-HCl (pH 7.5 at 25°C), 50mM KCl, 1mM DTT, 0.1mM EDTA, 0.2mg/ml BSA and 50% glycerol

 

Ligation and Recleavage

 

After 50-fold overdigestion with NcoI, approximately more than 90% of the DNA fragments can be ligated and recut

 

Methylation Effect

 

NcoI does not cut m4CCATGG, m5CCATGG, but cuts CCm6ATGG

 

Note A large excess of the enzyme results in star activity
 
 

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