Haptoglobin phenotyping by newly developed monoclonal antibodies. Demonstration of haptoglobin uptake into peripheral blood neutrophils and monocytes.

Abstract excerpt

We have generated two IgG murine mAbs that recognize native human haptoglobin (Hp). These mAbs, 3A8 and 4B2, efficiently bind to the Hp complex regardless of the serum donor's phenotype. The specificity of mAb 3A8 was confirmed by immunoaffinity purification of 3A8-binding material from human serum and subsequent N-terminal amino acid sequencing of the invariant 40-kDa chain. mAb 3A8 and 4B2 were also reactive...

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