Recognition Sequence :
C↑CATGG
GGTAC↓C
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); 50 mM KCl; 0.1 mM EDTA; 7 mM 2-mercaptoethanol; 200 μg/ml BSA; 50% glycerol.
Ligation :
After 20-fold overdigestion with enzyme more than 90% of the DNA fragments can be ligated and recut.
Source :
Bacillus species 19
Working buffer :
2W (20 mM Tris-HCl (pH 8,5 at 25°C); 10 mM MgCl2; 200 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
Inactivation :
20min Under 65°C
Methylation sensitivity :
Bsp19I cuts hemimethylated site
5`-(5mC)CATGG-3`/3`-GGTACC-5`
and doesn't cut methylated sites
5`-(5mC)CATGG-3`/3`-GGTAC(5mC)-5` and
5`-(4mC)CATGG-3`/3`-GGTAC(4mC)-5`.
Reagents Supplied :
10 X SE-buffer 2W, BSA
Notes :
To obtain 100% activity, BSA should be added to the 1x reaction mix to a final concentration of 100 μg/ml.
Do not use BSA for long incubation.
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