Klinische Wochenschrift 1976-Jan
Demonstration of carbohydrate structures in malignant melanoma tyrosinase.
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कीवर्ड
सार
Electrophoretic studies on malignant melanoma extracts before and after treatment with neuraminidase revealed that tyrosinase is a glycoprotein containing N-acetyl-neuraminic acid. Double diffusion tests using Concanavalin A and the lectin from Ricinus communis show that the carbohydrated chain of tyrosinase contains D-mannose as a sugar unit located within the carbohydrate chain. The terminal neuraminic acid groups are linked to D-galactose. The enzymatic activity of tyrosinase is not inhibited by Concanavalin A.