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pubmed:abstractText |
To examine the fine specificity of glycopeptide-specific antibodies, this study focused on the human MN blood group system. F(ab) phage display methods were previously used to construct an F(ab) family in which the H-chain Fd fragment was held constant whereas the L chains were "shuffled." This yielded two related F(ab), N92 and NNA7, with low and high affinity for N, respectively. Although their L-chain sequences are very similar, sharing 92 percent amino acid identity, there are intriguing differences at the N-terminus and in complementarity-determining region 3 (CDR3) at positions 89, 91, 92, and 96.
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