Abstract
A lectin with affinity to galactose was purified to homogeneity from the hemolymph of diapausing pupae of the Chinese oak silk moth, Anteraea pernyi. The molecular mass of this lectin was 380,000 and it formed an oligomeric structure of a subunit with a molecular mass of 38,000. The hemagglutinating activity in the hemolymph was found to increase with time after immunization with E. coli. Studies with antibody against the purified lectin showed that increase in the hemagglutinating activity was due to the same lectin, suggesting that the amount of the lectin increased in response to intrusion of foreign substances. The function of this lectin in the defence mechanism is discussed.
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