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. 2007 Jun;148(3):507–514. doi: 10.1111/j.1365-2249.2007.03374.x

Fig. 4.

Fig. 4

Scatchard analysis of Kd values of the native monomeric immunoglobulin A1 (mIgA1) and polymeric IgA1 (pIgA1) binding to human mesangial cells. Kd of native mIgA1 and native pIgA1 were 6·25 ± 4·33 × 10−9mol/l and 1·12 ± 0·54 × 10−7mol/l, respectively. The affinity of native mIgA1 was almost 100 times higher than that of native pIgA1.