The isolation and properties of a fragment of bovine-serum albumin which retains the ability to combine with rabbit antiserum

Abstract

PRECURSORS OF TISSUE PROTEIN 677 2. The liver, liver tunmour, kidney and spleen were homogenized and soluble extracts of the tissues were obtained. Samples of the extracts were treated with trichloroacetic acid and the radioactivity of the lysine and alanine in hydrolysates of the precipitated proteins was determined. The radio- activity of the alanine and lysine occurring free in the supernatants of the trichloroacetic acid pre- cipitates was also determined.