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Protease Fluorescent Detection Kit

high sensitivity assay

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Protease Fluorescent Detection Kit has been used:
  • in the detection of proteolytic activity using casein based protease assay
  • for testing the extracellular proteolytic activity of fungal strains
  • for quantifying mitochondrial protease activity
  • for measuring the protease production from soil solution


Detection limit: approx. 50 ng trypsin


Supplied with sufficient reagents for up to 200 one mL assays.
Supplied with sufficient reagents for up to 200 one mL assays.

The trichloroacetic acid (TCA) component is provided as 6.1 N TCA solution. 0.6 N TCA Solutions may be prepared by a 10-fold dilution of the desired volume of T0699 with ultrapure water. It is not necessary to dilute the entire volume of T0699 for immediate use of the kit.

Analysis Note

Tested for detection of all four proteolytic classes (serine, apartic, cysteine and metalloproteinases).

Kit Components Only

Product No.

  • Incubation buffer 25 mL

  • FITC-casein solution 5 mL

  • Assay buffer 200 mL

  • Protease standard (trypsin) 20 μg

  • FITC control 50 mg

  • Trichloroacetic acid (TCA) solution 30 mL

Signal Word


Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Resp. Sens. 1 - Skin Corr. 1A - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible, corrosive hazardous materials



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Use of the Protease Fluorescent Detection Kit to Determine Protease Activity

The Protease Fluorescent Detection Kit provides ready-to-use reagents for detecting the presence of protease activity. This simple assay to detect protease activity uses casein labeled with fluorescein isothiocyanate (FITC) as the substrate.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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