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. 1984 Jun;45(6):1153–1158. doi: 10.1016/S0006-3495(84)84263-0

Polymerization in erythrocytes containing S and non-S hemoglobins.

C T Noguchi
PMCID: PMC1434986  PMID: 6743746

Abstract

We analyzed the effects of protein and water nonideality and of erythrocyte heterogeneity on the polymerization of hemoglobin S in cells where there were significant amounts of non-S hemoglobins, sickle trait (AS), and SC disease. For AS erythrocytes, the calculated predicted results were in good agreement with measured polymer formation as previously reported (Noguchi C.T., D.A. Torchia, and A.N. Schnechter, 1981, J. Biol. Chem. 256:4168-4171). Throughout much of the physiologically relevant oxygen saturation region, polymer was not formed in AS erythrocytes. Measurements of polymer formation in SC erythrocytes as a function of oxygen saturation using 13C NMR are reported here and also are in good agreement with the calculated predicted results. As in sickle (SS) erythrocytes, polymer can be detected in SC erythrocytes in the region above 60% oxygen saturation. The increased polymer formation in SC erythrocytes as compared with AS erythrocytes can be explained in terms of hemoglobin composition and concentration in SC erythrocytes, with the concomitant increase in the proportion of dense cells. These findings provide a basis for understanding the pathophysiology of sickle cell and of SC disease, in contrast to benign sickle trait, in terms of intracellular polymer formation.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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