919.491; 958.474; 987.442; 1064.611; 1087.506; 1094.526; 1208.576; 1231.583; 1281.61; 1334.679; 1345.652; 1487.735; 1599.809; 1616.732; 1716.819; 1962.893; 2198.067; TRYPSIN