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Ig Isotypes - 1
Stack #18174
Isotype | Molecular weight | Additional protein subunits | Appx [ ] in serum | Percent total Ig | Distribution | Half life |
---|---|---|---|---|---|---|
IgG | 150,00 | none | 12 | 80 | equal: intra/extra vascular | 23 days |
IgA | 160,000 | J and S | 1.8 | 13 | Intravascular secretions | 5.5 |
IgM | 900,000 | J | 1 | 6 | Mostly intravascular | 5 |
IgD | 180,000 | none | 0-0.04 | 0.2 | Preson on lymphocyte surface | 2.8 |
IgE | 200,000 | none | 0.00002 | 0.002 | On basophils and mast cells present in saliva and nasal secretions | 2.0 |