A soluble anticoagulant protein isolated and purified from Ancylostoma hookworms markedly prolongs both the prothrombin time and partial thromboplastin time in clotting assays. The protein has an apparent molecular weight of about 6500 daltons and exhibits amino acid sequence homology to the Kunitz-type...http://www.google.fr/patents/US5427937?utm_source=gb-gplus-shareBrevet US5427937 - Hookworm anticoagulant
