Recognition Sequence :
G↑AATTC
CTTAA↓G
Unit Definition :
One unit of the enzyme is the amount required to hydrolyze 1 μg of Lambda DNA in 1 hour at 37°C in a total reaction volume of 50 μl.
Reaction Temperature :
37°C
Storage Buffer :
10 mM Tris-HCl (pH 7.5); 200 mM NaCl; 0.1 mM EDTA; 7 mM 2-mercaptoethanol; 200 μg/ml BSA; 50% glycerol.
Ligation :
After 40-fold overdigestion with enzyme about 95% of the DNA fragments can be ligated and recut.
Source :
An E.coli strain that carries the cloned EcoR I gene from Escherichia coli
Working buffer :
SE-buffer EcoRI (100 mM Tris-HCl (pH 7.6 at 25°C); 10 mM MgCl2; 50 mM NaCl; 1 mM DTT.) + BSA
Non-specific hydrolisis :
No nonspecific activity was detected after incubation of 1 μg of Lambda DNA with 40 u.a. of enzyme for 16 hours at 37°C.
Concentration, u.a./ml :
20000; 50000
Inactivation :
20min Under 65°C
Reagents Supplied :
10 X SE-buffer EcoRI, BSA
Notes :
High enzyme concentration and using of nonoptimal buffer may result in star activity.
Do not use BSA for long incubation.
To obtain 100% activity, BSA should be added to the 1 x reaction mix to a final concentration of 100 μg/ml.
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