Isolation and characterization of glycophorin from carp red blood cell membranes

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Abstract

We isolated a high-purity carp glycophorin from carp erythrocyte membranes following extraction using the lithium diiodosalicylate (LIS)-phenol method and streptomycin treatment. The main carp glycophorin was observed to locate at the position of the carp and human band-3 proteins on an SDS-polyacrylamide gel. Only the N-glycolylneuraminic acid (NeuGc) form of sialic acid was detected in the carp glycophorin. The oligosaccharide fraction was separated into two components (P-1 and P-2) using a Glyco-Pak DEAE column. We observed bacteriostatic activity against five strains of bacteria, including two known fish pathogens. Fractions from the carp erythrocyte membrane, the glycophorin oligosaccharide and the P-1 also exhibited bacteriostatic activity; whereas the glycolipid fraction and the glycophorin fraction without sialic acid did not show the activity. The carp glycophorin molecules attach to the flagellum of V. anguillarum or the cell surface of M. luteus and inhibited bacterial growth. © 2014 by the authors; licensee MDPI, Basel, Switzerland.

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APA

Aoki, T., Chimura, K., Nakao, N., & Mizuno, Y. (2014). Isolation and characterization of glycophorin from carp red blood cell membranes. Membranes, 4(3), 491–508. https://doi.org/10.3390/membranes4030491

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