“…At first, it was suggested that the clotting and the phosphatase activities might represent two different functional groups associated with the same protein entity (Inniss & San Clemente, 1962). However, using fractions separated by zone electrophoresis on cellulose columns, we were successful in dissociating phosphatase from clotting activity, and from tributyrinase as well (Drummond & Tager, 1962a). This dissociation has also been reported by San Clemente and Zolli (1963).…”