Prostate Specific Antigen–α2-Macroglobulin Complex human 

PSA from human seminal fluid; α₂-M from human plasma.

Solution in 20 mM sodium phosphate, pH 7.4, 150 mM sodium chloride, and 0.05% sodium azide.

Prostate Specific Antigen (PSA), a glycoprotein of the glandular kallikrein family, is a serine protease with chymotrypsin-like enzymatic activity. Circulating PSA exists in free and protease inhibitor-bound forms. Studying the ratios of free to inhibitor-bound forms may prove valuable in the diagnosis of prostate cancer.

Prostate Specific Antigen (PSA), a glycoprotein of the glandular kallikrein family, is a serine protease with chymotrypsin-like enzymatic activity.

buffered aqueous solution

Free α2-macroglobulin and PSA, may contain traces

human ... A2M(2), KLK3(354)

wet ice

2-8°C

Ambruster, D.A. Clin. Chem. 39, 181, (1993) abstract

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