Product info: EcoR I Name EcoR I    Cat. # E057 E058 E057X E058X E057T E058T E057m Package, u.a. 5000 25000 5000 25000 5000 25000 500 Concentration, u.a./ml 20000 20000 50000 50000 20000 20000 20000 Recognition site G↑AATTC CTTAA↓G Source 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 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. Ligations 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. Reagents Supplied with Enzyme 10 X SE-buffer EcoRI, BSA (except E057m, E057T and E058T). For E057T and E058T an additional 10X SE-buffer ROSE is supplied. 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. 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 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 Fragment lengths M 1 2 3 4 5 M M - ladder, 1 - Adeno-2 DNA, 2 - Lambda DNA, 3 - T7 DNA, 4 - pUC19, 5 - pBR322