Immunoglobulin A

**Definition:** Represents 15-20% of the human serum immunoglobulins, mostly as the 4-chain polymer in humans or dimer in other mammals. Secretory IgA (IMMUNOGLOBULIN A, SECRETORY) is the main immunoglobulin in secretions.

**Tree numbers:** - D12.776.124.486.485.114.619.026 - D12.776.124.790.651.114.619.026 - D12.776.377.715.548.114.619.026

**Synonyms:** - IgA Antibody - IgA