INVESTIGADORES
ISLA Maria Ines
artículos
Título:
ACID INVERTASE FROM TROPAEOLUM LEAVES
Autor/es:
MARIA INES ISLA, MARTA AMELIA V,4TTUOM,TM ARTA INES GUTIERREZ* AND ANTONIO RODOLFO SAMPLETRO
Revista:
PHYTOCHEMISTRY
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 1988 vol. 27 p. 1993 - 1998
ISSN:
0031-9422
Resumen:
The invertase of Tropaeolum majus leaves was partially purified. Its optimum pH was ca 5.25 and its K,values for sucrose, raffinose, and stachyose were 5.3, 17 and 25 mM respectively. The products of the reaction were inuitro inhibitors of the enzyme. Fructose was a partial competitive inhibitor (K, 49 mM) and glucose was a noncompetitiveclassical inhibitor (K, 57 mM). Proteins were activators of the enzyme. As activation by proteinssuppressed the inhibitory effects of the reaction products, product inhibition does not appear to be involved in thephysiological regulation of the enzyme.
