In vitro prothrombin synthesis from a purified precursor protein. III. Preparation of an acid-soluble substrate for vitamin K-dependent carboxylase by limited proteolysis of bovine descarboxyprothrombin - Soute, B A M; Vermeer, C; De Metz, M; Hemker, H C; Lijnen, H R (Biochim Biophys Acta, 1981)