DENARASE® High Salt
Unmatched performance
at elevated salt concentrations

DENARASE® High Salt
DENARASE® High Salt is an engineered version of the wild-type Serratia marcescens endonuclease. By introducing a few amino acid substitutions, the enzyme was optimized for salt tolerance. This allows the enzyme to retain its activity at higher salt concentrations without losing specificity for nucleic acids. DENARASE® High Salt exhibits higher DNA removal activity across a broader range of salt concentrations and pH levels. These features provide greater flexibility in bioprocessing and enable seamless integration into existing workflows.
Why High Salt?
Salt concentrations between 200 mM and 400 mM can improve the solubility of viral vectors and impurities and thereby reduce the formation of aggregates. In addition, non-aggregated DNA is more accessible for endonucleases, which further contributes to a more efficient process.
Why choose DENARASE® High Salt?
DENARASE® High Salt is the first engineered S. marcescens endonuclease that keeps its activity also at higher salt concentrations. As the engineered enzyme also remains active over a broader pH range, DENARASE® High Salt offers more flexibility for process developers to optimize the purification process of viral vectors.
Benefits of DENARASE® High Salt
- Designed for improved salt & pH tolerance
For highest process flexibility & efficiency
- Tailored to fit your process
Seamless integration into existing processes - Compatible with DENARASE® ELISA Kit
The one-for-all Serratia marcescens ELISA Kit

Best performance from low to high salt!
Our DENARASE® enzyme portfolio allows for efficient DNA removal across a broad salt spectrum and different pH levels, allowing you to choose the enzyme that best fits your process conditions. At low to physiological salt conditions, the standard DENARASE® exhibits peak performance and continues to be the most economical solution. For processes that benefit from salt addition, DENARASE® High Salt offers the greatest flexibility and cost-efficiency.

Recommended conditions:
DENARASE®
-
pH: 7.4-9
- Salt: 0-150 mM
DENARASE® High Salt
- pH: 7.4-9
- Salt: 0-500 mM
Engineered innovation that adapts to your process!
DENARASE® High Salt shows a high DNA removal activity across a wide range of salt concentrations, outperforming other salt-active endonucleases (Salt-E). Especially at pH 7.4 the activity of DENARASE® High Salt is significantly higher than its competitors.
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DNA removal activities of commercial salt-active endonucleases (Salt-E1) assed by
c-LEcta Salt Performance Test. Measured DNA removal activities [UnitTest/μL] were normalized to the applied nuclease units as specified in the manufacturer’s CoAs [UnitCoA/μL] and are depicted as [UnitTest/UnitCoA].
Avoid additional salt & pH adjustments!
DENARASE® High Salt shows a high activity at salt concentrations that are commonly applied during the harvest step. This avoids the need for salt and pH adjustments to increase endonuclease activity, as required for some of the other marketed salt active enzymes. Maximize your bioreactor capacity – without reserving space for buffer and salt additions.
DENARASE® High Salt – The optimal choice for a flexible and efficient process design!
DENARASE® and DENARASE® High Salt - The same, but different!
Characteristic |
DENARASE® |
DENARASE® High Salt |
Enzyme Origin |
Serratia marcescens |
Engineered from Serratia marcescens |
Production Host |
Bacillus sp. |
|
Molecular Weight |
27 kDa (per monomer) |
|
Temperature Optimum |
37°C |
|
Quantification of Residual Enzyme |
DENARASE® ELISA Kit |
|
Magnesium Optimum |
||
Isoelectrical Point |
pH 6.2 |
pH 7.83 |
Salt Working Range |
0-200 mM |
0-500 mM |
The one-for-all ELISA Kit
Because of its high similarity to the wild-type enzyme, DENARASE® High Salt can be detected using conventional Serratia marcescens endonuclease ELISA Kits, such as the DENARASE® ELISA Kit.
DENARASE® - Your complete toolkit for DNA removal
Order your DENARASE® toolkit now!
Step 1 | Which product?
Products for use in research and development & GMP
For process development and GMP manufacturing of biologicals such as viral vectors and vaccines. Removing all forms of DNA and RNA, DENARASE® enhables a simpler, more efficient downstream process.
- DENARASE® GMP-grade is manufactured under EU GMP conditions
- DENARASE® R&D-grade is produced in conformity with the ISO 9001 standard, with less strict requirements regarding documentation, storage and distribution
- From a technical performance perspective, both quality grades are equal and the parameters on the specification are the same. This allows for a seamless transition from early R&D stage towards biopharmaceutical manufacturing under GMP.
Products for use in research and development & GMP
DENARASE® High Salt is designed to retain activity at elevated salt and different pH levels. It is specifically engineered for use in development and manufacturing processes, that benefit from salt additions. The salt-tolerant enzyme efficiently cleaves all forms of DNA and RNA across a broad range of process-relevant conditions, facilitating flexible and more efficient production of biologicals, such as viral vectors and vaccines.
- DENARASE® High Salt GMP-grade manufacturing complies with EU GMP standards.
- DENARASE® High Salt R&D-grade is produced under ISO 9001 standard.
- Both quality grades of DENARASE® High Salt are technically equivalent, enabling a seamless transition from early R&D stages to biopharmaceutical manufacturing under GMP.
ELISA Kit for DENARASE®, DENARASE® High Salt and Benzonase*
For the quantitative analysis of residual Serratia marcescens endonucleases including DENARASE® High Salt in process samples.
- The kit consists of a pre-coated micro test plate and all ready to use reagents.
- The capacity of 1 kit is 480 measurements
- Estimated Delivery time: 1-2 weeks (depending on region)
- Net price excluding VAT and shipment costs
*Benzonase Nuclease is a registered trademark of Merck KGaA
Step 2 | Which grade?
For process development of biologicals such as viral vectors and vaccines. The enzyme cleaves all forms of DNA and RNA and enables a simpler, more efficient downstream process.
Purity: ≥ 99%
Activity: > 250 U/µl
Formulation: buffered aqueous glycerol solution
Storage Temperature: -20°C
Estimated Delivery time: 1-2 weeks (depending on region)
- Produced in conformity with ISO 9001 standard
- Manufacturing free of animal derived raw materials and antibiotics
- Depending on your application 10 – 60 U/ml is needed
- Net price excluding VAT and shipment costs
Activity: > 250 U/µl
Formulation: buffered aqueous glycerol solution
Storage Temperature: -20°C
Estimated Delivery time: 1-2 weeks (depending on region)
- Produced under EU GMP conditions
- Manufacturing free of animal derived raw materials and antibiotics
- Dedicated regulatory support for US-market approvals of pharmaceutical products via own US FDA Drug Master File
- Net price excluding VAT and shipment costs
Step 2 | Which grade?
Products for use in research and development
Intended for use in process development of biologicals such as viral vectors and vaccines. The salt-tolerant enzyme cleaves all forms of DNA and RNA and enables a simpler, more efficient downstream process at salt concentrations above 150 mM.
Purity: ≥ 98%Activity: > 250 U/µl
Formulation: buffered aqueous glycerol solution
Storage Temperature: -20°C
Estimated Delivery time: 1-2 weeks (depending on region)
- Produced under ISO 9001 standard
- Manufactured without the use of antibiotics, Triton X-100 and raw materials of animal origin
- Depending on your application 10 – 100 U/ml is needed
- Net price excluding VAT and shipment costs
GMP products for biopharmaceutical manufacturing
Intended for use in GMP manufacturing of biologicals such as viral vectors and vaccines. The salt-tolerant enzyme cleaves all forms of DNA and RNA and enables a simpler, more efficient downstream process salt at concentrations above 150 mM.
Purity: ≥ 98%Activity: > 250 U/µl
Formulation: buffered aqueous glycerol solution
Storage Temperature: -20°C
Estimated Delivery time: 1-2 weeks (depending on region)
- Manufacturing of the GMP-grade DENARASE® High Salt complies with the same stringent regulations and standards as the wild-type GMP-grade DENARASE® products.
- Produced under GMP conditions complying with EU GMP regulations
- Manufactured without the use of antibiotics, Triton X-100 and raw materials of animal origin
- Net price excluding VAT and shipment costs
Step 3 | Choose your product
Step 4 | Request price
Step 4 | Request price
Step 3 | Choose your product
Step 4 | Request price
Step 4 | Request price
Get in touch with our DENARASE® expert team!

Vaishnavi Devarakonda
DENARASE® Sales

Melissa Rangel
DENARASE® Sales
Need support? Contact me!

Cynthia Hofmann-Orsetti
DENARASE® Sales
Need support? Contact me!