TISSUE PROTEIN PP IN21 XX, A PROCESS FOR OBTAINING IT AND ITS USE

摘要

Abstract of the disclosure:The protein PP21 which has the followingcharacteristics:a) an electrophoretic mobility in the region of that of.beta.1-globulins,b) an isoelectric point of 4.6 ? 0.3;c) a sedimentation coefficient s20,w of 3.2 ? 0.2 S;d) a molecular weight determined in an ultracentrifugeof 52,900 ? 6,200;e) an extinction coefficient E??m(280 nm) of 10.5 ?1.0; andf) a carbohydrate fraction of 19.2 ? 5.2 g/100 g (man-nose 1.8 ? 0.4, galactose 4.3 ? 1.0, fucose 1.3 +0.3, N-acetylglucosamine 6.5 ? 2.0 and N-acetylneura-minic acid 5.3 ? 1.5, each g/100 g),and a specified amino acid composition, a process forobtaining it and its use are described.