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324682

Elastase, Porcine Pancreas, High Purity, Crystallized

Elastase, Porcine Pancreas, High Purity, Crystallized, CAS 39445-21-1, is a serine protease that hydrolyzes proteins and peptides, especially at bonds adjacent to neutral amino acid residues.

Sinonimo/i:

Elastase, Porcine Pancreas, High Purity, Crystallized

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Cambia visualizzazione
Taglio della confezioneSKUDisponibilitàPrezzo
250 U
Per conoscere la disponibilità, visualizza il carrello
CHF 259.00
1000 U
Per conoscere la disponibilità, visualizza il carrello
CHF 805.00

Informazioni su questo articolo

Numero CAS:
Numero CE:
UNSPSC Code:
12352204
NACRES:
NA.54
MDL number:
Specific activity:
≥25 units/mg protein

CHF 259.00


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Quality Segment

description

Merck USA index - 14, 3535

form

lyophilized

specific activity

≥25 units/mg protein

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, desiccated

solubility

distilled water: 10 mg/mL

foreign activity

Chymotrypsin ≤0.2%

shipped in

ambient

storage temp.

−20°C

General description

Native elastase from porcine pancreas. A serine protase that catalyzes the hydrolysis of proteins and peptides (especially at bonds adjacent to neutral amino acid residues), including albumin, casein, denatured collagen, elastin, fibrin, and hemoglobin and of a number of synthetic substrates containing aspartic acid, phenylalanine, or tyrosine. Inhibited by DFP, elastinal, and α2-macroglobulin.
Native elastase from porcine pancreas. Catalyzes the hydrolysis of proteins and peptides (especially at bonds adjacent to neutral amino acid residues), including albumin, casein, denatured collagen, elastin, fibrin, and hemoglobin, and of a number of synthetic substrates containing aspartic acid, glutamic acid, phenylalanine, or tyrosine. Preferentially cleaves peptide bonds at the carbonyl end of amino acid residues with small hydrophobic side chains, such as glycine, valine, leucine, isoleucine, and particularly alanine. Inhibited by DFP, elastinal, and α2-macroglobulin. Has an optimal pH of 7.8-8.5; pI = 9.5. Note: Elastase tends to adhere to glass. Hence, use of siliconized glassware is recommended.

Physical form

Lyophilized from 50 mM Trehalose, 1 mM Acetic Acid.

Preparation Note

Following reconstitution, elastase may be stored at 4°C at pH 6.0 for long term use. If incubated at room temperature at or near its optimum pH, elastase rapidly autolyzes to a mixture of peptides. Stock solutions are stable for up to 2 months at 4°C, pH 6.0.

Other Notes

Largman, C. et al. 1976. Biochemestry15, 2491.
Mandl, I. 1962. Methods in Enzymol.5, 665.
One unit is defined as the amount of enzyme that will hydrolyze 1.0 mol of Suc-Ala-Ala-Pro-Abu-pNA (Cat no.324699) per min at 25°C, pH 8.0.

Legal Information

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

Disclaimer

Toxicity: Standard Handling (A)

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Questo articolo
E0258E7885E1250
specific activity

≥25 units/mg protein

specific activity

≥4.0 units/mg protein (biuret)

specific activity

≥4 units/mg protein

specific activity

≥4.0 units/mg protein

form

lyophilized

form

lyophilized powder

form

lyophilized powder

form

suspension

storage condition

OK to freeze, desiccated

storage condition

-

storage condition

-

storage condition

-

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

2-8°C

shipped in

ambient

shipped in

-

shipped in

dry ice

shipped in

-

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200


pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Classe di stoccaggio

11 - Combustible Solids

wgk

WGK 3



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Numero articolo commerciale globale

SKUGTIN
324682-250U07790788054380
324682-1000U04055977196832

Questions

1–2 of 2 Questions  
  1. How should the enzyme be reconstituted and stored?

    1 answer
    1. As indicated above, this product is soluble in distilled water to 10 mg/mL. Following reconstitution, elastase may be stored at 4°C at pH 6.0 for long term use. If incubated at room temperature at or near its optimum pH, elastase rapidly autolyzes to a mixture of peptides. Stock solutions are stable for up to 2 months at 4°C, pH 6.0.

      Helpful?

  2. What type of elastase is 324682-250U? Is it type I, II, III, IV, or a mixture?

    1 answer
    1. This product is not currently tested for isoforms, so we cannot speculate on which isoforms are present or most prevalent in this product; however, based on a literature search, this product should be most consistent with isoforms from the pancreas.

      Helpful?

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