[ Change in the protein spectrum of the erythrocytic membranes in certain anemias].

Proteins of human erythrocyte membranes were studied in normal state and in different anaemias. After solubilization of cell "shadows" in phenol-urea-acetic acid-water system in membranes there were found, by means of polyacrylamide gel disc electrophoresis, 20 protein fractions with molecular weight from 48000 to 225000; seven of them glycoproteins. In 9 cases out of 36 a complete or partial disappearance of a glycoprotein component with molecular weight of 170000 was observed in erythrocyte membranes from patients with inherited spherocytosis and Markiafava--Mikely disease.