Przejdź do zawartości
Merck

Przejdź do

539125

Protease Assay Kit

Zaloguj się, aby wyświetlić ceny organizacyjne i kontraktowe.

Wybierz wielkość

Zmień widok
Do Państwa/SKUDostępnośćCena netto
1 kit

Przewidywany termin wysyłki03 czerwca 2026zKuehne + Nagel Sp. z o.o.

2900,00 zł

Informacje o tej pozycji

NACRES:
NA.84
UNSPSC Code:
41116133

2900,00 zł


Przewidywany termin wysyłki03 czerwca 2026Szczegóły


Pomoc techniczna
Potrzebujesz pomocy? Nasz zespół doświadczonych naukowców chętnie Ci pomoże.
Pozwól nam pomóc


usage

sufficient for 200 tests

Quality Segment

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, protect from light

assay range

sensitivity: 10 ng/mL

input

sample type biological sample(s)

detection method

colorimetric

shipped in

wet ice

storage temp.

−20°C

General description

A kit suitable for quantitative array of a wide variety of proteases in biological samples, utilizing FTC-casein as a substrate. Enzyme activities that have been detected with this assay kit include: chymotrypsin, elastase, plasminogen, PRONASE® Protease, subtilisin, thermolysin, and trypsin.
This Protease Assay Kit is suitable for the quantitative determination of protease activity in biological samples. This kit has been tested for its suitability in detecting a wide variety of proteases, including serine proteases (trypsin, chymotrypsin, thrombin, plasmin, elastase, subtilisin), cysteine proteases (papain, cathepsin B) and acid proteases (thermolysin, pepsin). Each kit provides sufficient reagents for 200 assays. When used as recommended, this kit is ~100-fold more sensitive than either the casein-gel assay or casein A280 assay. The Protease Assay Kit can detect ~10 ng/ml of protease when a 24 h incubation is used. The sensitivity can be enhanced by up to 3-fold by using a fluorometer (excitation 490 nm and emission 525 nm) rather than a spectrophotometer to detect the proteolytic end products.

Features and Benefits

Assay Time: 3 h

Preparation Note

FTC-casein should be stored at -20°C and is stable for one year from the date of purchase. FTC-casein stored at 4°C is stable for 2-3 days. Several freeze-thaw cycles will lead to a minor increase in the background fluorescence, so following initial thawing, we suggest that this reagent be divided into 5 aliquots. FTC-casein is light sensitive and should be protected from light.

Protease positive control should be stored at -20°C. As with many proteases, trypsin is susceptible to autolysis and you may notice a reduction in trypsin activity with time, even if stored at -20°C.

Incubation buffer and assay buffer may be stored at 4°C or -20°C.

Other Notes

A Fluorescent-Casein Substrate, Incubation Buffer, Assay Buffer Trypsin Standard, and a user protocol.
Twining, S.S. 1984. Anal. Biochem.143, 30.
Wiesner, R., et al. 1982. Anal. Biochem.121, 290.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
PRONASE is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Multiple Toxicity Values, refer to MSDS (O)
Ta strona może zawierać tekst przetłumaczony maszynowo.

Porównaj podobne pozycje

Wyświetl pełne porównanie

Pokaż różnice

1 of 1

Ta pozycja
CS1070219265MAK172
Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

-

input

sample type biological sample(s)

input

-

input

sample type cell lysate
sample type tissue homogenate(s)
sample type erythrocyte lysate
sample type plasma
sample type serum

input

-

assay range

sensitivity: 10 ng/mL

assay range

-

assay range

-

assay range

-

manufacturer/tradename

Calbiochem®

manufacturer/tradename

-

manufacturer/tradename

Calbiochem®

manufacturer/tradename

-

detection method

colorimetric

detection method

-

detection method

colorimetric

detection method

fluorometric

storage temp.

−20°C

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

−20°C


Klasa składowania

10 - Combustible liquids



Certyfikaty analizy (CoA)

Poszukaj Certyfikaty analizy (CoA), wpisując numer partii/serii produktów. Numery serii i partii można znaleźć na etykiecie produktu po słowach „seria” lub „partia”.

Masz już ten produkt?

Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów



Questions

1–2 of 2 Questions  
  1. Kann ich mit diesem Kit die Anson Units meiner Protease bestimmen?

    1 answer
    1. The BAEE and Anson units are defined by different enzyme-substrate systems and assay conditions, so a universal conversion is not possible. To relate activities expressed in these different units, both units need to be converted to a common unit, like International Units (IU). Conversion:
      International Units (IU) and BAEE units: Approximately 270 BAEE units correspond to 1 International Unit (U) at 25 °C.
      International Units (IU) and Anson units: One Anson unit corresponds to 550 IU.
      Alternatively, running a side-by-side positive control with known Anson unit activity would allow the determination of the Anson unit activity of an unknown sample.

      Helpful?

  2. Do you have the protocol for 539125-1 using plant extracts?

    1 answer
    1. Unfortunately, there is no specific protocol for use with plant extracts. Please see the link below to review the protocol:
      https://www.emdmillipore.com/US/en/product/Protease-Assay-Kit,EMD_BIO-539125#anchor_USP

      Helpful?

Reviews

No rating value

Active Filters