Recognition Sequence :
↑AATT
TTAA↓
Unit Definition :
One unit of the enzyme is the amount required to hydrolyze 1 μg of pBR322 DNA in 1 hour at 55°C in a total reaction volume of 50 μl.
Reaction Temperature :
55°C
Storage Buffer :
10 mM Tis-HCl (pH 7.5); 50 mM NaCl; 0.1 mM EDTA; 1 mM DTT; 200 μg/ml BSA; 50% glycerol.
Ligation :
After 5-fold overdigestion with enzyme more than 95% of the DNA fragments can be ligated and recut.
Source :
An E.coli strain that carries the cloned Sse9 I gene from Sporosarcina species
Working buffer :
B (10 mM Tris-HCl (pH 7.6 at 25°C); 10 mM MgCl2; 1 mM DTT.) + BSA
Non-specific hydrolisis :
No nonspecific activity was detected after incubation of 1 μg of DNA with 5 u.a. of enzyme for 16 hours at 55°C.
Concentration, u.a./ml :
5000
Inactivation :
20min Under 65°C
Methylation sensitivity :
Blocked by methylation: 5`-A(m6A)TT-3`/ 3`-TT(m6A)A-5`.
Reagents Supplied :
10 X SE-buffer B, BSA
Notes :
At 37°C activity is 75% from maximum.
To obtain 100% activity, BSA should be added to the 1 x reaction mix to a final concentration of 100 μg/ml.
Do not use BSA for long incubation.
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