3.1.4.41 extracellular - - -, 135483, 713659, 714061, 715398, 716964, 728914, 729815, 730697, 730746, 731002 3.1.4.41 membrane associated to 16020 653121 3.1.4.41 membrane associated, SMase-C activity is detected in soluble and particulate fractions 16020 -, 714926 3.1.4.41 plasma membrane - 5886 681248 3.1.4.41 plasma membrane in the outer leaflet of the plasma membrane 5886 681249 3.1.4.41 soluble SMase-C activity is detected in soluble and particulate fractions - -, 714926