Abstract
Summary
Electrophoresis and column fractionation of plasma, SPPS, and the albumin peak of SPPS after electrophoresis, demonstrated that the described angiotensinase activity is normally present in a fraction distinct from albumin, alpha-2, beta and gamma globulins. Its physical characteristics generally tend to classify it as an alpha-1 globulin of a single species or of several species having very similar characteristics. That it is a protein is strongly supported by the fact that protein precipitation techniques were used in its purification, that it was nondialyzable, and that it was completely destroyed by heating to 100°C.
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