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An. acad. bras. ciênc ; 58(2): 297-302, 1986. tab
Artículo en Inglés | LILACS | ID: lil-94850

RESUMEN

When trypsin and chymotrypsin inhibitor of Vigna unguiculata seeds (black-eyed pea trypsin and chymotrypsin inhibitor, BTCI) combines with ß-trysin, 4.0, 1.5, 5.0, 5.8, and 6.6 tyrosyl residues are shield from reaction with N-acetylimidazole, at reagent/protein molar ratios of 60, 120, 200, 350 and 500, respectively. This may result from the presence of tyrosyl residues in the zone of contact between enzyme and inhibitor. In the interaction of BTCI and alpha-chymotrypsin, only 0.6 tyrosyl residues are shielded from the reaction with N-acetylimidazole, at a 500-fold reagent molar excess


Asunto(s)
alfa 1-Antiquimotripsina/metabolismo , Imidazoles/metabolismo , Semillas , Tripsina/metabolismo , Tirosina/metabolismo , Acetilación , Sitios de Unión , Péptido Hidrolasas/metabolismo
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