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Substrate specificity and kinetic properties of neutral maltase of human granulocytes

Stio, M.; Giachetti, E.; Vanni, P.; Pinzauti, G.

Comptes Rendus des Seances de la Societe de Biologie et de ses Filiales 181(5): 553-559

1987

ISSN/ISBN: 0037-9026
PMID: 2966658
Document Number: 294448
A neutral maltase immunologically similar to this of kidney exist in human granulocytes. We have studied some kinetic properties of this enzyme on a microsomal fraction of granulocytes. Its optimal pH is very closed of 6.8 and this enzyme, highly specific for maltose, hydrolysis very weakly the nigeriosis. Maltotriose, maltotetraose and maltopentanose are inhibitors of this enzyme, which is not inhibited by all disaccharides studied.

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