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Expression of the major sialoglycoprotein (glycophorin) on erythroid cells
in human bone marrow
CG Gahmberg, M Jokinen and LC Andersson
The major sialoglycoprotein of human erythrocyte membranes (glycophorin) is
one of the most-studied membrane proteins. Although the structure is
relatively well known, almost nothing is known about its expression in
erythroid cells. To study this we raised an antiserum that reacted
specifically with this protein. This was accomplished by immunization of
rabbits with a preparation of glycophorin followed by absorption with
En(a-) erythrocyte membranes, which lack glycophorin. By use of this
antiserum and a staphylococcus protein A technique we could establish that
only bone marrow cells of erythrocyte lineage express glycophorin at the
cell surface. This occurs in basophilic normoblasts and later stages of
erythrocyte differentiation, whereas pronormoblasts do not seem to contain
glycophorin.
Volume 52,
Issue 2,
pp. 379-387,
08/01/1978
Copyright © 1978 by The American Society of Hematology
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