Sma I
| Enzyme name | Sma I | ||||||||||||
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| Prototype | SmaI | ||||||||||||
| Known analogs | Cfr9I, XmaCI, Xma I | ||||||||||||
| SKU | SE-E177 | ||||||||||||
| Turbo version | Available | ||||||||||||
| High-concentration version | Not available | ||||||||||||
| Restriction type | Type IIPiType IIP enzymes are classical Type II restriction enzymes with palindromic recognition sequences and symmetric cleavage sites. | ||||||||||||
| Recognition site | 5'… CCC▼GGG …3' 3'… GGG▲CCC …5' |
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| Source | An E.coli strain that carries the cloned Sma I gene from Serratia marcescens | ||||||||||||
| Optimal buffer | SE-buffer Y (33 mM Tris-acetate (pH 7.9 at 25°C); 10 mM magnesium acetate; 66 mM potassium acetate; 1 mM DTT.) | ||||||||||||
| Optimal temperature | 25 °C | ||||||||||||
| Inactivation temperature | 65 °C | ||||||||||||
| Buffer activity |
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| Unit definition | One unit of the enzyme is the amount required to hydrolyze 1 μg of Lambda DNA (HindIII-digest) in 1 hour at 25°C in a total reaction volume of 50 μl. | ||||||||||||
| Assayed on | Lambda DNA (HindIII-digest) | ||||||||||||
| Storage conditions | 10 mM Tris-HCl (pH 7.5); 50 mM NaCl; 0.1 mM EDTA; 1 mM DTT; 200 μg/ml BSA; 50% glycerol; Store at -20°C. | ||||||||||||
| Ligation | After 20-fold overdigestion with enzyme more than 90% of the DNA fragments can be ligated (by using of high concentration T4 DNA Ligase and 10% PEG) and recut. | ||||||||||||
| Nonspecific hydrolysis | No nonspecific activity was detected after incubation of 1 μg of Lambda DNA with 20 u.a. of enzyme for 16 hours at 25°C. | ||||||||||||
| Methylation sensitivity | not tested | ||||||||||||
| Reagents supplied with enzyme | 10 X SE-buffer Y. | ||||||||||||
| Notes | |||||||||||||
| References | No publications found. |