Group C rotavirus requires sialic acid for erythrocyte and cell receptor binding. |
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Authors: | L Svensson |
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Affiliation: | Department of Virology, National Bacteriological Laboratory, Stockholm, Sweden. |
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Abstract: | Current immunological and biochemical information regarding the hemagglutinin and virus-cell interactions of rotavirus is obtained exclusively from studies with group A rotaviruses. In this study, I report that the immunologically and genetically distinct group C rotavirus also possesses a hemagglutinin. The viral hemagglutinin was identified on a cultivable porcine group C rotavirus strain (strain AmC-1) by using agglutinated human and guinea pig erythrocytes. Neuraminidase treatment of fresh human erythrocytes or blocking with glycophorin A or fetuin prevented hemagglutination. Infection of swine testicular cells with group C AmC-1 virus was also prevented by glycophorin A, fetuin, and neuraminidase treatment, suggesting that sialic acid constitutes an essential part of the cell receptor. |
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