Psp124B I

Description

Recognition site and hydrolysis position:

Source: Pseudomonas species 124B
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)
Optimal SE-buffer: SE-buffer G
Enzyme activity (%):

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.
Ligations:
After 20-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 40 u.a. of enzyme for 16 hours at 37°C. Reagents Supplied with Enzyme 10 X SE-buffer G.
Reagents Supplied with Enzyme:
Methylation sensitivity: not tested
Notes:
References:
Degtyarev, S.Kh., Dedkov, V.S., Rechkunova, N.I., Morgan, R. Unpublished observations (1994).