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. 2014 Dec 8;125(1):316–323. doi: 10.1172/JCI76802

Figure 3. Specificity of plasma cell antigen receptor–derived (BCR-derived) Fab and HSP90-SUMO1–specific paraproteins by ELISA.

Figure 3

P549 represents a HSP90-SUMO1 reactive paraprotein, while P69 is a paraprotein with specificity for paratarg-7. (A) Reactivity. (B) Specificity. Sumoylated valosin-containing protein (VCP) (CDC48) as a control for WT SUMO. (C) Competition ELISA. (D) Titer determination of paraprotein and recombinant BCR.