Surface glycoproteins of normal and malignant leukocytes
1983
: This study aimed to evaluate the molecular weight distribution patterns and the quantitative expression of surface glycoproteins (S-GP) of various differentiation stages of human leucocytes. S-GP were first exposed by treatment with neuraminidase; subsequently they were labelled by galactose-oxidase treatment followed by reduction with 3H-sodium borohydride. Labelled S-GP were separated on polyacrylamide gels in the presence of SDS and were visualized by means of fluorography. A total of 8 major S-GP bands with apparent molecular weights of 230 000, 215 000, 200 000, 185 000, 175 000, 150 000, 125 000 and 110 000 daltons were identified. All of these S-GP were already expressed at the level of pluripotent myelopoietic stem cells but different in their relative expression during further cellular maturation.
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