EnzChek™ Protease Assay Kit, red fluorescence, 100-1000 assays - FAQs

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3 个常见问题解答

What is the optimal pH range for protease activity detection using the EnzChek Protease Assay Kit?

The digestion buffer provided in the kit (pH 7.8) is recommended for detecting the protease activity of most proteolytic enzymes with activity optima from pH 7.4 to 8.0. However, if you are working with an enzyme that requires activation compounds or a unique pH environment, then prepare the specific buffer required in place of the digestion buffer.

What is the shelf life for EnzChek Protease Assay kits (Cat. Nos. E6638, E6639)?

As stated in the manual (https://assets.thermofisher.com/TFS-Assets/LSG/manuals/mp06638.pdf) on page 2 under section "Storage and Handling", these kits are stable for 6-12 months if stored as indicated.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.

How long is the reconstituted BODIPY substrate in the EnzChek Protease Assay Kit, red fluorescence, 100-1000 assays (Cat. No. E6639) stable?

Reconstituted BODIPY casein substrates may be stored at 4 degrees C for 2-4 weeks. We recommend the addition of sodium azide at a final concentration of 2 mM to act as a preservative. If longer storage is required, freeze at -20 degrees C. Protect from light and avoid repeated freezing and thawing.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.