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Predicted amino acid sequences of constant region of 6-19 and 46-42 IgA mAbs bearing the Igh-2a allotype. The 62–amino acid hinge peptide of each IgA mAb yielded by treatment with trypsin and lysylendopeptidase is underlined, in which the hinge region is highlighted in gray. The potential O-linked glycosylation site at threonine position 228 and three N-linked glycosylation sites at N162, N438, and N453 are boxed.
