Psp124B I

Enzyme name Psp124B I
Prototype SacI
Known analogs SacI, SstI, Ecl136II, EcoICR I
SKU SE-E107
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'… GAGCTC …3'
3'… CTCGAG …5'
Source Pseudomonas species 124B
Optimal buffer SE-buffer G (10 mM Tris-HCl (pH 7.6 at 25°C); 10 mM MgCl2; 50 mM NaCl; 1 mM DTT.)
Optimal temperature 37 °C
Inactivation temperature 80 °C
Buffer activity
BGOWYROSE
751001007530
Unit definition One unit of the enzyme is the amount required to hydrolyze 1 μg of Lambda DNA (HindIII-digest) in 1 hour at 37°C in a total reaction volume of 50 μl.
Assayed on Lambda DNA (HindIII-digest)
Storage conditions 10 mM Tris-HCl (pH 7.5); 250 mM NaCl; 0,1 mM EDTA; 7 mM 2-mercaptoethanol; 100 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 and recut.
Nonspecific hydrolysis 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.
Methylation sensitivity not tested
Reagents supplied with enzyme 10 X SE-buffer G.
Notes
References
  1. Unpublished data Degtyarev, S.Kh., Dedkov, V.S., Rechkunova, N.I., Morgan, R Unpublished observations (1994).
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