| Characteristics |
IgG |
IgA |
IgM |
IgD |
IgE |
| Svedberg units |
6-7S |
6-11S |
19S |
6.1S |
8.2S |
| Molecular weight |
150kd |
160kd |
900kd |
185kd |
200kd |
| Carbohydrate (%) |
3 |
8 |
12 |
13 |
12 |
| Percent total Ig concentration |
75-85 |
10-15 |
5-10 |
1 |
0.002 |
| Percent total Ig concentration |
1275 |
225 |
125 |
3 |
1 |
