in contrast , our studies have shown that macrophages may process some incoming ligands in endosomes ( diment , s. , and stahl , p. d. ( 1985 ) j. biol . chem . 260 , 15311-15317 ) and that cathepsin d , an aspartyl protease , is localized in these organelles ( diment , s. , leech , m. s. , and stahl , p. d. ( 1988 ) j. biol . chem . 263 , 6901-6907 ) .
C0007427
cathepsin d
C0078989
aspartyl protease