3.4.22.26 cell surface loosely anchored on outside of cells 9986 3.4.22.26 extracellular - - 3.4.22.26 extracellular in serum - 3.4.22.26 extracellular in blood serum - 3.4.22.26 intracellular - 5622 3.4.22.26 membrane - 16020 3.4.22.26 soluble - -