GenScript Dnase I; 1000U

List Price $65.00 Your Price $65.00
GenScript Dnase I1000u - GSCRPT (Additional S&H or Hazmat Fees May Apply)
NETA PART: GSCRPT-E00053-1000
MFG.PART: E00053-1000
UNSPSC: 12352204
Manufacturer: GenScript USA Inc
Description

Deoxyribonuclease I (DNase I) is DNA-specific endonuclease that cleaves both single-stranded DNA,double-stranded DNA and DNA-RNA hybrids, yielding 5-phosphate-terminated polynucleotides with a free hydroxyl group on position 3 producing tetranucleotides. The activity of DNase I is strictly dependent on Ca2+ and can be activated by divalent metal ions such as Mg2+ or Mn2+. In the presence of Mg2+, DNase I nonspecifically recognizes and cleaves a double-stranded DNA at anysite on either strand, and in the presence of Mn2+, it recognizes and cleaves almost the same sites on both strands of the DNA to produce DNA fragments with blunt ends or sticky ends with 1~2 nucleotide overhangs.

GenScript is offering DNase I produced by expression in a P. pastoris strain carrying a plasmid encoding the bovine DNase I.

Note

For laboratory research use only. Direct human use, including taking orally and injection and clinical use are forbidden.

Properties
Source Recombinant DNase I expressed by yeast.
Species Bovine
Molecular Weight 35-40 kDa, on SDS-PAGE under reducing conditions.
Unit Definition One unit is the amount of the enzyme that increases the absorbance at 260 nm by 0.001 per minute at 25 °C, pH 5.0, with calf thymus DNA as the substrate.
Optimal active temperature 37 °C
Formulation Supplied as a solution of 20 mM sodium acetate, 5 mM CaCl2, 0.1 mM PMSF, 50% (v/v) glycerol, pH 6.5 at 25 °C.
Inactivation Add EDTA with a final concentration of 2.5 mM and heat the solution at 65 °C for 10 min can inactivate DNase I.
Storage & Stability This product remains stable up to 12 months at -20 °C. Avoid repeated freeze-thaw cycles.
Quality Control Specifications
AssaySpecifications
AppearanceClear, colorless liquid
Purity≥ 95% as analyzed by SDS-PAGE
Enzyme Activity≥ 2 U/μl
Endotoxin Level≤ 0.1 EU/μg of protein by gel clotting method
Residual RNaseNon-detectable

Applications
·   DNA template digestion following in vitro transcription 
·   Genomic DNA digestion prior to RT-PCR
·   Preparation of DNA-free RNA samples
·   Nick-translation
·   Studies of DNA-protein interactions by DNase I, RNase-free footprinting·   Prevent cell clumping without affecting cell viability


Background
References 1.      Kienzle, N., et al. "DNaseI treatment is a prerequisite for the amplification of cDNA from episomal-based genes." BioTechniques 20.4 (1996): 612-616.
2.      Anderson, Stephen. "Shotgun DNA sequencing using cloned DNase I-generated fragments." Nucleic acids research 9.13 (1981): 3015-3027.
3.      Green, Michael R., Tom Maniatis, and D. A. Melton. "Human β-globin pre-mRNA synthesized in vitro is accurately spliced in Xenopus oocyte nuclei." Cell 32.3 (1983): 681-694.

More Information
SKU GSCRPT-E00053-1000
Featured No
Supplier Part Number E00053-1000
UM EA
UNSPSC 12352204
Manufacturer Name GenScript USA Inc
Temperature This product remains stable up to 12 months at -20 °C. Avoid repeated freeze-thaw cycles.
ProductLine GSCRPT
Qty 1
MinOrderQty 1
Weight 7.000000
Lead Time 7
Hazardous N
Energy Star No
Green No
ACT Ecolabel No
Controlled N
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