Abstract
The human erythroid cell line, K562, synthesizes the major red cell sialoglycoprotein, glycophorin A. We have isolated an mRNA fraction which codes for glycophorin A from K562 cells and studied the synthesis of the sialoglycoprotein in a rabbit reticulocyte cell‐free system. In the absence of membranes a precursor form of glycophorin A was synthesized. This was identified using specific anti‐(glycophorin A) serum. The apparent molecular weight of the carbohydrate‐free precursor of glycophorin A wss 19500. This exceeds the molecular weight of the glycophorin A apoprotein by approximately 5000. In the presence of membranes from dog pancreas, the synthesized glycophorin A precursor was N‐glycosylated and probably also O‐glycosylated. The oligosaccharide chains remained incompleted and the glycoprotein synthesized in vitro corresponded to the glycosylated precursor of glycophorin A obtained in intact cells.
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Dates
Type | When |
---|---|
Created | 20 years, 5 months ago (March 3, 2005, 4:06 p.m.) |
Deposited | 1 year, 9 months ago (Nov. 23, 2023, 1:55 a.m.) |
Indexed | 11 months, 3 weeks ago (Sept. 6, 2024, 8:19 a.m.) |
Issued | 44 years, 6 months ago (Feb. 1, 1981) |
Published | 44 years, 6 months ago (Feb. 1, 1981) |
Published Online | 20 years, 5 months ago (March 3, 2005) |
Published Print | 44 years, 6 months ago (Feb. 1, 1981) |
@article{JOKINEN_1981, title={Cell‐Free Synthesis and Glycosylatlon of the Major Human‐Red‐Cell Sialoglycoprotein, Glycophorin A}, volume={114}, ISSN={1432-1033}, url={http://dx.doi.org/10.1111/j.1432-1033.1981.tb05159.x}, DOI={10.1111/j.1432-1033.1981.tb05159.x}, number={2}, journal={European Journal of Biochemistry}, publisher={Wiley}, author={JOKINEN, Mikko and ULMANEN, Ismo and ANDERSSON, Leif C. and KÄÄRIÄINEN, Leevi and GAHMBERG, Carl G.}, year={1981}, month=feb, pages={393–397} }