Table 1. Summary of positive clones derived from memory B cells.

Antigen ELISA and cell based binding assay
Donor ID	Number of positive clones / Total clones (% of positives)
	Antigen ELISA	Cell based binding assay
MG1	12 / 208 (5.8%)	0 / 208 (0%)
MG2	11 / 414 (2.7%)	0 / 414 (0%)
MG3	11 / 360 (3.1%)	0 / 360 (0%)
MG5	6 / 344 (1.7%)	0 / 344 (0%)
MG7	6 / 269 (2.2%)	0 / 269 (0%)
Healthy control	1 / 250 (0.4%)	0 / 250 (0%)
Total (MG)	46 / 1595 (2.9%)	0 / 1595 (0%)

ID indicates the donor enrolled in this study. Healthy control indicates non-MG PBMC purchased from the Veritas corporation. Number and % of positive clones of antigen (recombinant ECD of the α-subunit) ELISA and DB40 cell based binding assay are shown. Clones that show signal intensity greater than two-fold more than that of an irrelevant protein (BSA) or the parent cell line (TE671) are defined as positives.