Product info: Pps I


Name
Pps I
Cat. #E269E270
Package, u.a.25125
Concentration, u.a./ml500-1000500-1000

Recognition site
GAGTC(N)4
CTCAG(N)5
SourcePseudomonas pseudoalcaligenes
Assayed onLambda DNA
Unit definitionOne 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-bufferY (33 mM Tris-acetate (pH 7.9 at 25°C); 10 mM magnesium acetate; 66 mM potassium acetate; 1 mM DTT.) + BSA
Enzyme activity (%)
BGOWYRose
50 - 7510 - 250 - 1025 - 5010050
Optimal temperature
37oC
Storage conditions10 mM Tris-HCl (pH 7.5); 50 mM KCl; 0.1 mM EDTA; 7 mM 2-mercaptoethanol; 200 μg/ml BSA and 50% glycerol; Store at -20°C.
LigationsAfter 2-fold overdigestion with enzyme 20% of the DNA fragments can be ligated and recut.
Non-specific hydrolisisNo nonspecific activity was detected after incubation of 1 μg of Lambda DNA with 2 u.a. of enzyme for 16 hours at 37°C.
Reagents Supplied with Enzyme 10 X SE-buffer Y, BSA
Methylation sensitivitynot tested
Inactivation 20 minutes under
65oC
NotesTo obtain 100% activity, BSA should be added to the 1 x reaction mix to a final concentration of 100 μg/ml.
Do not use BSA for long incubation.
Quality control
Restriction Endonucleases: Quality Control
MSDS:Download MSDS as PDF
References:Dedkov, V.S., Bondar, T.S., Shevchenko, A.V., Abdurashitov, M.A., Degtyarev, S.Kh. Unpublished observations (1998).
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
M12345M

M - ladder, 1 - Adeno-2 DNA, 2 - Lambda DNA, 3 - T7 DNA, 4 - pUC19, 5 - pBR322