Abstract
De la pulpa de frutos de Jacaratia dodecaphylla se ha aislado un enzima que muestra su máxima actividad proteolítica a una temperatura de 52°C, y a un pH de 7.5. El enzima, al igual que muchas proteinasas de origen vegetal, tiene un aminoácido cisteina en su centro activo, ya que su actividad es inhibida por el E-64 y el PMSF. Cationes divalentes como el Mg++ y Mn++ estabilizan su actividad, mientras que el Nit+ y el Cu++ la inhiben.
A proteolitic enzime has been isolated from the pulp of fruits of Jacaratia dodecaphylla. Maximum protease activity was found at 52°C and at pH 7.5. The enzime, like many previously studied proteases from plant sources, has a cysteinyl active center, as sugested by the inhibition of its activity by E-64 and PMSF. Divalent cations like Mn++ and Mg++ stabilize the enzime activity, whyle Nit+ and Cut+ are inhibitors.