nucleus- and mitochondrion-free membranes from hamster lymphocytes transformed by simian virus 40 ( sv40 ) , gd248 cells , cause guinea pigs to produce immune sera that reveal the presence in gd248 plasma membranes and mitochondria of two types of glycoprotein that are not detected in membranes of normal lymphocytes [ schmidt-ullrich , r. , thompson , w. s. & wallach , d. f. h. ( 1977 ) proc . natl . acad . sci . usa 74 , 643-647 ] .
C0007634
cells
C0007603
plasma membranes