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AbstractPhylogenetic analysis of the prophenoloxidase/hexamerin family of arthropods revealed four well supported subfamilies: (1) the arylphorin subfamily, including arylphorins, storage proteins, and other proteins of uncertain function from insects; (2) the hemocyanins of branchiopod crustaceans, which are copper-binding proteins involved in oxygen transport; (3) the hemocyanins of chelicerates;...
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