Table 2.

Results of purification of anti-Pg IgG at each stage. IgG amount is the mean of four independent experiments with the same plasma pool

Stage of purification╲Plasma samples, V = 1 ml	Intact plasma, total IgG, mg	Ammonium sulfate precipitation. Total IgG, mg	Protein-G Sepharose, total IgG, mg	IgG, bound to Pg- sepharose, mg	IgG, unbound to Pg- sepharose, mg
Plasma of healthy donors	9.0	8.1 ± 0.4	7.5 ± 0.6	0.7 ± 0.2	6.0 ± 0.5
Plasma of prostate cancer patients	12.3	11.0 ± 0.6	10.3 ± 0.9	2.8 ± 0.4	6.5 ± 0.6