Table 2.

Fractions of human anti-β2GP1 Abs recognizing peptide A, B, or C in patients with APS

Patient no.	Anti-peptide A		Anti-peptide B		Anti-Peptide C		Total anti-β2GP1 in μg/ml serum
	μg/ml*	%†	μg/ml*	%†	μg/ml*	%†
1	87.6	23	140.9	37	1.5	0.4	381
2	1.6	0.7	34.3	15	6.9	3	229
3	4.9	1.4	1.8	90.5	135.3	39	347
4	83.8	29	124.3	43	63.6	22	289
5	1.4	0.9	44.4	29	2.7	1.8	153
6	18.2	9.0	28.3	14	8.1	3	202
7	52.1	27	21.2	11	0.9	0.5	193
8	8.9	2.8	104.6	33	13.3	4.2	317
9	29.5	12	3.2	1.3	1.2	0.5	246
10	1.1	0.6	13.9	7.9	29	16.4	177

Affinity-purified anti-β2GP1 Abs were loaded on peptide A column, eluted, and passed through peptide B column followed by peptide C column. 

^*The values given in μg/ml represent IgG plus IgM antibodies as determined by ELISA. 

^†The values given represent percentage of antipeptide antibodies of total anti-β2GPI Abs.