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  • Elastin Products Company, Inc.
    P.O. Box 568
    Owensville, Missouri, USA 65066

  • Phone: 573-437-2193
    Fax: 573-437-4632
    email: epc@fidnet.com

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$91.00

 

EC 3.4.21.36

 


SOURCE. Porcine pancreas.

 

SPECIFICATIONS.
Chromatographically purified, 2X crystallized.
MW= 25,500.
Suspension in 0.02 M NaOAc pH 6.0 containing 0.01% NaN3 as preservative.

 


Store 5°C. Stable 9-12 months.

 


120-145 units per mg of protein on the substrate elastin-orcein.
One unit will slubilized 1 mg of elastin in 20 minutes at pH 8.8 and 37°C (11).

 


Greater than 9 units per mg on the
substrate Suc-(Ala)3-pNA.
One unit will hydrolyzed 1 µmole per minute at pH 8.3 and 25°C.
Assay procedure in Methods.

 


Free of trypsin, chymotrypsin, lipase, alpha-amylase and the carboxypeptidases.

 

PREPARATION.
Prepared by chromatography of the euglobin fraction of porcine pancreas. Euglobin prepared by the method of Lewis et al. (30). The same chromatographic procedure is used as for preparation of Elastase-High Purity, EPC No. EC134. After chromatography, the high specific activity fraction is twice crystallized. The crystalline elastase has the same electrophoretic and purity characteristics as EPC No. EC134.