Forty species of marine shells were collected from Korean coasts and studied extensively for their lectin activities by using erythrocytes of human blood A, AB, B, O group and rabbit blood. In total, 7 species contained lectins: Neptunea intersculpta, Omphalius nigerrimus and Scapharca subcrenata, blood group nonspecific; Saxidomus purpuratus, human blood A and AB group specific; Lepidozona coreana, Tegillarca granosa and Neptunea polycosta, rabbit blood specific.
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