Recognition site | RGCGC↑Y Y↓CGCGR |
Source | Bacillus stearothermophilus H2 |
Assayed on | Lambda DNA |
Unit definition | One unit of the enzyme is the amount required to hydrolyze 1 μg of Lambda DNA in 1 hour at 65°C in a total reaction volume of 50 μl. |
Optimal SE-buffer | Y (33 mM Tris-acetate (pH 7.9 at 25°C); 10 mM magnesium acetate; 66 mM potassium acetate; 1 mM DTT.) + BSA |
Enzyme activity (%) | B | G | O | W | Y | Rose | 50 - 75 | 50 - 75 | 0 - 10 | 10 - 25 | 100 | 100 |
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Optimal temperature | 65oC |
Storage conditions | 10 mM KH2PO4(pH 7.5); 100 mM NaCl; 0,1 mM EDTA; 7 mM 2-mercaptoethanol; 200 μg/ml BSA; 50% glycerol. Store at -20°C. |
Ligation | After 10-fold overdigestion with enzyme more than 90% of the DNA fragments can be ligated and recut. |
Non-specific hydrolisis | No nonspecific activity was detected after incubation of 1 μg of Lambda DNA with 20 u.a. of enzyme for 16 hours at 65°C.
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Reagents Supplied with Enzyme |
10 X SE-buffer Y, BSA |
Methylation sensitivity | not tested |
Inactivation 20 minutes under | 80oC |
Notes | High enzyme concentration may result in star activity
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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Quality control | Restriction Endonucleases: Quality Control |
MSDS: | Download MSDS as PDF |
References: | Abdurashitov, M.A., Kileva, E.V., Shevchenko, A.V., Degtyarev, S.K.
Unpublished observations (1994).
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