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First-class enzyme engineering and production technologies to provide innovative enzyme products!

       DENARASE®   |  DENARASE® High Salt |  DENARASE® ELISA Kit |  DENARASE® Reference Paper

Overview of DENARASE®

Mechanism of Action

DENARASE® selectively cleaves the phosphodiester linkages within nucleotide sequences, generating smaller nucleic acid fragments approximately 3-5 base pairs in length. It exhibits activity across various nucleic acid configurations, including single-stranded, double-stranded, linear, circular, and supercoiled forms. Optimal performance is achieved when the enzyme is introduced prior to DNA release.

Manufacturing Insights

Developed for integration into commercial production workflows for biologics, DENARASE® adheres to the European Union's Good Manufacturing Practice (GMP) standards. Its innovative production methodology employs a gram-positive Bacillus species as the host organism, effectively reducing endotoxin contamination risks. The production process is distinguished by its exclusion of antibiotics, materials associated with transmissible spongiform encephalopathies (TSE/BSE), and animal-derived raw materials.

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DENARASE® - Enzyme Characteristics

Cofactor Requirements DENARASE® necessitates magnesium ions (Mg2+) as a cofactor to facilitate its enzymatic activity. The enzyme's optimal performance is attained with a concentration of 1-2 mM of Mg2+ ions. It is important to note that an excessive amount of MgCl2 can diminish the enzyme's effectiveness.

Stability and Optimal Storage The enzyme maintains its stability and activity when stored at -20 °C, with a guaranteed shelf life of at least 24 months post-manufacture. Storing DENARASE® below -70 °C is discouraged as it leads to a reduction in enzymatic activity.

Packaging and Shipping DENARASE® is packaged in vials that meet the non-pyrogenic, USP Class VI standards, ensuring safety and compatibility. These vials are then secured in polystyrene containers for protection during transportation, which is conducted under cooled conditions. It is crucial to differentiate between shipping and storage temperatures, as variations during transit do not compromise the product's integrity.

Enhanced Availability in the US Market R&D-grade DENARASE® is now readily available in the US market through Biohippo Inc, a local distributor based in Gaithersburg, Maryland. This new availability streamlines procurement, offering expedited delivery and eliminating the complexities of customs clearance, thus ensuring seamless access for research and development endeavors.

Molecular weight (calculated): 27 kDa (dimer with two identical subunits)
pH optimum: pH 8.0 – 9.0
Temperature optimum: 37 °C
Isolectric point (pl, calculated): pH 6.2
Cofactor: Mg2+

Effect of Temperature and pH value

The effect of low and high Magnesium Chloride

Product specification

In order to ensure a constant and high-quality level for DENARASE®, each batch must fulfill the in-house acceptance criteria for the parameters listed below.

 
Criteria Method Specification
Appearance visual clear, transparent solution
Activity photometric >250 U/µL
Purity Protein purity determined by
SDS-PAGE and silver staining
≥99%
Specific Activity Activity per protein content
determined photometrically
at 280 nmwith a molar extinction
coefficient of 44,600 L x mol-1 x cm-1
>6 x 105 U/mg
Protease activity Protease detection assay No protease activity detectable
Endotoxin level LAL-Test acc. to Ph. Eur. 2.6.14, Method C                                 <0.25 EU/kU
Total microbial count                           TAMC/TYMC acc. to Ph. Eur. 2.6.12 Aerobic bacteria: < 5 cfu/200

µLYeast/moulds: < 5 cfu/200 µL


Unit-definition: One unit (U) will digest salmon sperm DNA to acid-soluble oligonucleotides equivalent to a ΔA260nm of 1.0 in 30 min at pH 8.0 at 37 °C.
Product Information Sheeet
Product Specification DENARASE® R&D-grade

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