in our laboratory a large number of , for the most part , new proteins have been detected by immunochemical methods in extracts from human term placentae : namely 3 pregnancy proteins ( sp1 , sp2 and sp3 ) , around 40 soluble placental tissue proteins ( pps ) and at least 11 different solubilized , apparently membrane-associated , tissue proteins .
C0033684
proteins
C0025252
membrane-associated