Evidence for involvement of IgA1 hinge glycopeptide in the IgA1-IgA1 interaction in IgA nephropathy.

T Kokubo, Y Hiki, H Iwase, A Horii… - Journal of the …, 1997 - journals.lww.com
The study was performed to investigate the role of the IgA1 hinge region in the IgA1-IgA1
interaction, which was observed previously in IgA nephropathy. The competitive inhibition
assays of the IgA1-IgA1 binding were performed using the following candidates for
inhibitors: native IgA1 hinge glycopeptide (nHGP), IgA1, IgA2, and IgG. The IgA1-IgA1
binding was definitely inhibited by the nHGP and the IgA1 (maximum of percent inhibition:
66.1 and 60.5%, respectively). There was no obvious inhibition in the IgA2 and the IgG. The …