Abstract
The proteases exert important holes in physiological and pathological systems, and the action of the inhibitors is one of the most efficient forms for the modulation. The Amblyomin-X (Amblyomma cajennense inhibitor of Factor Xa) is a recombinant protein, which initially was expressed with a histidine-tag. It presents molecular mass of approximately 14 kDa, exerts similarity with Kunitz ty…