title: [Measurement of alpha 2-macroglobulin in human sera by quantitative inhibition of an acid staphylococcal protease (author's transl)].
abstract: Concentrations of alpha 2-macroglobulin could be determined in the sera of 215 blood donors and 94 patients with various internal diseases by quantitative inhibition of an acid protease from Staphylococcus aureus, M 135 (fig. 1, 2). The determinations agreed closely with those obtained by immunodiffusion (tab. 1, fig. 3). However, the alpha 2-macroglobulin-measurements by the protease method required only 4 h and 40 microliter serum. This procedure would also be suitable for the determination of alpha 2-macroglobulin in sera from experimental and domestic animals.
mesh_terms: D006801:Humans; D005779:Immunodiffusion; D011480:Protease Inhibitors; D013211:Staphylococcus aureus / Q000201:enzymology; D000511:alpha-Macroglobulins / Q000032:analysis* / Q000494:pharmacology
chemical_list: D011480:Protease Inhibitors; D000511:alpha-Macroglobulins
vernacular_title: Messung von alpha 2-Makroglobulin in Humanseren durch quantitative Hemmung einer sauren Staphylokokken-Protease.