|Source||An E.coli strain that carries the cloned Zra I gene from Zoogloea ramigera 11|
|Assayed on||Lambda DNA|
|Unit definition||One 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-buffer||B (10 mM Tris-HCl (pH 7.6 at 25°C); 10 mM MgCl2; 1 mM DTT.)|
|Enzyme activity (%)|
|100||50 - 75||25 - 50||25 - 50||75 - 100||100|
|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 10-fold overdigestion with enzyme more than 90% of the DNA fragments can be ligated and recut. In the presence of 10% PEG ligation is better.|
|Non-specific hydrolisis||No nonspecific activity was detected after incubation of 1 μg of Lambda DNA with 10 u.a. of enzyme for 16 hours at 37°C.
|Reagents Supplied with Enzyme||
10 X SE-buffer B|
|Methylation sensitivity||not tested|
|Inactivation 20 minutes under||80oC|
|Notes||High enzyme concentration may result in star activity.
The minimum number of units that resulted in complete digestion of 1 ug of substrate DNA in 16 hours is 0,5.
ZraI cleaves linear plasmid DNA at a rate 1,5-2 times higher than supercoiled plasmid DNA.|
|Quality control||Restriction Endonucleases: Quality Control|
|MSDS:||Download MSDS as PDF|
|References:||Dedkov, V.S., Sinichkina, S.A., Popichenko, D.V., Degtyarev, S.K.
Biotekhnologia 6 : 3-7 (2001) |
|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
M - ladder, 1 - Adeno-2 DNA, 2 - Lambda DNA, 3 - T7 DNA, 4 - pUC19, 5 - pBR322