XceI (NspI)

Catalog Number: USB-X0990
Article Name: XceI (NspI)
Biozol Catalog Number: USB-X0990
Supplier Catalog Number: X0990
Alternative Catalog Number: USB-X0990-500
Manufacturer: US Biological
Category: Molekularbiologie
5-Pu C A T G Py-3 3-Py G T A C Pu-5 Concentration: 10u/ul Source: Xanthomonas campestris Ast 40-024 Buffer: 33mM Tris-acetate (pH 7.9), 10mM magnesium acetate, 66mM potassium acetate and 0.1mg/ml BSA. Incubate at 37C Diluent Buffer: 10mM Tris-HCl (pH 7.4 at 25C), 100mM KCl, 1mM EDTA, 1mM DTT, 0.2mg/ml BSA and 50% glycerol. For longer periods-the Storage Buffer should be used. Storage Buffer: 10mM Tris-HCl (pH 7.5 at 25C), 300mM KCl, 1mM DTT, 0.1mM EDTA, 0.2mg/ml BSA and 50% glycerol. Overdigestion Assay: No detectable change in the specific fragmentation pattern is observed after 320-fold overdigestion (20u/ug lambda DNA x 16 hours) with XceI. Ligation/Recutting Assay: After 50-fold overdigestion (3u/ug DNA x 17 hours) with XceI, more than 95% of the DNA fragments can be ligated at a 5-termini concentration of 0.32uM. More than 95% of these can be recut. Labeled Oligonucleotide (LO) Assay: No detectable degradation of a single-stranded and double-stranded labeled oligonucleotide was observed after incubation with 10 units of restriction endonuclease for 4 hours. Stability during Prolonged Incubation: A minimum of 0.2 units of enzyme is required for complete digestion of 1ug of lambda DNA in 16 hours at 37C. Thermal Inactivation: Enzyme is inactivated by incubation at 65C for 20min. Compatible Ends: PaeI, NlaIII. Number of Recognition Sites in DNA: Lambda: 32 PhiX174:0 M13mp18/19: 6 pBR322: 4 pUC18/19: 3 pUC57: 3 pTZ19R/U: 2 pBluescriptIIKS(-/+): 1 pBluescriptIISK(-/+): 1 pACYC177: 1 pACYC184: 2 Unit Definition: One unit is defined as the amount of enzyme required to digest 1ug of lambda DNA in 1 hour at 37C in 50ul of assay buffer.