Product info: PspX I


Name
PspX I
Cat. #E477E478E478X
Package, u.a.20010001000
Concentration, u.a./ml100001000050000

Recognition site
VCTCGAGB
BGAGCTCV
SourceE.coli strain that carries the cloned PspX I gene from Pseudomonas species A1-1
Assayed onLambda DNA (HindIII-digest)
Unit definitionOne 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.
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 - 7550 - 7525 - 5075 - 10010025
Optimal temperature
37oC
Storage conditions10 mM Tris-HCl (pH 7.5); 200 mM KCl; 0.1 mM EDTA; 7 mM 2 -mercaptoethanol, 200 μg/ml BSA; 50% glycerol. Store at -20°C.
LigationsAfter 20-fold overdigestion with enzyme more than 90% 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 20 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
80oC
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:Gonchar D.A., Abdurashitov M.A., Belichenko O.A., Dedkov V.S., Mezentseva N.V., Tomilova J.E., Degtyarev S.Kh. Bulletin of biotechnology and physico-chemical biology named by Yu.A.Ovchinnikov, No. 1, pp18-23 (2005)
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