INACTIVATION OF INVERTASE AND RAFFINASE BY HEAT

The Physical Inactivation of Invertase.

The inactivation of invertase by tyrosinase. II. The influence of copper and gold on the oxidation of invertase and pepsin.

Previous studies from this laboratory have demonstrated the oxidation of certain proteins by tyrosinase (1, 2) and the inactivation of invertase by tyrosinase (3, 4). Different tyrosinase preparations vary greatly in their ability to inactivate invertase; in particular, certain dialyzed or very highly purified tyrosinase solutions seem to have lost their ability to oxidize invertase. In Paper I...

Radiation inactivation of the glycoprotein, invertase.

The radiation target size for invertase activity has been determined for the Saccharomyces cerevisiae glycoprotein which contains 50% carbohydrate. Identical inactivation curves were observed for the native enzyme as well as samples depleted of carbohydrate by incubation with Endo-beta-N-acetylglucosaminidase H. The functional unit of 120,000 daltons was unaltered by the per cent of oligosaccha...

An invertase inactivator in maize endosperm and factors affecting inactivation.

A protein present in the developing endosperm of maize (Zea mays L.) causes a loss of invertase activity under certain conditions of incubation. This protein, designated an inactivator, inactivates invertase I of maize even in the presence of other proteins. No inactivation of invertase II of maize or yeast invertase has been observed. The inactivator and invertase I are found only in the endos...

second language acquisition of telicity and aspect by persian learners of english

این تحقیق از دو قسمت اصلی تشکیل شده است: در قسمت اول فراگیری ختمیت به ویژه درک و تولید اینگونه جملات توسط فراگیران ایرانی زبان انگلیسی مورد بررسی قرار گرفته است. قضاوت تعدادی انگلیسی زبان بر روی این جملات نیز هدفی دیگر بود که در این رساله بررسی شده است. از موضوعات دیگر تفاوت بین نشانه های ختمیت در زبان انگلیسی و فارسی و تاثیر زبان اول فراگیران در درک و تولید اینگونه جملات است. در قسمت دوم استفا...