Serum complement-like opsonic activities in human, animal, vegetable, and proprietary milks

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Science  03 Jun 1977:
Vol. 196, Issue 4294, pp. 1115-1117
DOI: 10.1126/science.323975


Human, animal, proprietary, and soy milks are comparable to human serum C5 in opsonization of baker's yeast. Bovine milk and human serum opsonically reconstitute C5-deficient mouse serum. Such reconstitution is selectively inhibited by antiserum to human C5. Further characterization suggests that bovine milk contains material structurally and functionally similar, but not identical, to human C5.