| Recognition site | G↑AATTC
CTTAA↓G |
| Source | An E.coli strain that carries the cloned EcoR I gene from Escherichia coli |
| 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 37°C in a total reaction volume of 50 μl. |
| Optimal SE-buffer | SE-buffer EcoRI (100 mM Tris-HCl (pH 7.6 at 25°C); 10 mM MgCl2; 50 mM NaCl; 1 mM DTT.) + BSA |
| Enzyme activity (%) | | B | G | O | W | Y | Rose | | 50 - 75 | 75 - 100 | 75 - 100 | 75 - 100 | 50 - 75 | 50 |
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| Optimal temperature | 37oC |
| Storage conditions | 10 mM Tris-HCl (pH 7.5); 200 mM NaCl; 0.1 mM EDTA; 7 mM 2-mercaptoethanol; 200 μg/ml BSA; 50% glycerolerol; Store at -20°C. |
| Ligation | After 40-fold overdigestion with enzyme about 95% 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 40 u.a. of enzyme for 16 hours at 37°C.
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| Reagents Supplied with Enzyme |
10 X SE-buffer EcoRI, BSA (except E057T and E058T).
For E057T and E058T an additional 10X SE-buffer ROSE is supplied.
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| Methylation sensitivity | not tested |
| Inactivation 20 minutes under | 65oC |
| 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.
Turbo EcoR I can be used for short time (10 min) DNA digestion as well as for standard reaction. The reaction can be performed using optimal or universal (ROSE) Buffer.
Turbo DNA Digestion:
Applications:
-Fast DNA analysis
-Fast preparation of vectors for cloning
-Double digestion
Enzyme Properties:
1 μl of Turbo EcoR I cuts 1 μg of DNA in 1 x SE-Buffer EcoRI or universal 1 x SE-Buffer ROSE in 10 min (see the protocol below). A short time of DNA digestion requires high quality purification of DNA sample. The enzyme may be used in standard conditions of DNA cleavage (E057).
Turbo reaction protocol:
20 μl of the reaction volume:
10 x SE Buffer ROSE - 2 μl
DNA - 0,2-1 μg
Nuclease-free water - to 20 μl
+ 1μl of Turbo EcoR I
Incubate at 37°C for 10 min.
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| Quality control | Restriction Endonucleases: Quality Control |
| MSDS: | Download MSDS as PDF |
| References: | Albertsen, H.M., Le Paslier, D., Abderrahim, H., Dausset, J., Cann, H., Cohen, D. Nucleiv Acids Res. 17: 808 (1989).
 Chernukhin V.A, Abdurashitov M.A., Tomilov V.N., Gonchar D.A., Degtyarev S.Kh. Comparative analysis of mouse chromosomal DNA digestion with restriction endonucleases in vitro and in silico // "Ovchinnikov bulletin of biotechnology and physical and chemical biology" V.3, No 4, pp 19-27, 2007
V.A. Chernukhin, M.A. Abdurashitov, V.N. Tomilov, D.A. Gonchar, S.Kh. Degtyarev Comparative restriction enzymes analysis of rat chromosomal DNA in vitro and in silico // "Ovchinnikov bulletin of biotechnology and physical and chemical biology" V.2, No 3, pp 39-46, 2006
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Theoretical diagrams of DNA digestion by this enzyme for the most known DNA substrates:
To view the fragments length values please point mouse cursor over diagram |
M - ladder, 1 - Adeno-2 DNA, 2 - Lambda DNA, 3 - T7 DNA, 4 - pUC19, 5 - pBR322
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