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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@elastin.com

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$238.00

EC 3.4.21.20

SOURCE. Leucocytes of Purulent Human Sputum.


SPECIFICATIONS.

Prepared from purulent human sputum by salt fractionation, ion exchange and affinity chromatographies. Supplied as salt-free, lyophilized powder.
MW ca. 23,500
Stable 9 to 18 months at 5°C in a closed container.
Specific activity 2 - 4 units per mg of powder.
1 unit will hydrolyze 1 µM of Suc-Ala-Ala-Pro-Phe-pNA (EPC No. SG554) per minute at pH 7.5 and 25°C.
Protein determined by method of Bradford (68).
Assay procedure is described in Methods.

 

  • (68) Analytical Biochemistry 72 248-254 (1976)