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Purity of enriched pooled subclass fractionsa
| Fraction | % IgG1 | % IgG2 | % IgG3 | % IgG4 |
|---|---|---|---|---|
| IgG1 | 94.7 | 4.7 | 0 | 0.6 |
| IgG2 | 10 | 89.4 | 0 | 0.6 |
| IgG3 | 0 | 0 | 100 | 0 |
Collection tubes from FPLC were tested by ELISA for the presence of all four IgG subclasses. HIVIG lot 113 is shown here; results for lot 114 were similar.
