Interleukin-13

**Semantic type:** Amino Acid, Peptide, or Protein|Immunologic Factor

**Definition:** Interleukin-13 (146 aa, ~16 kDa) is encoded by the human IL13 gene. This protein plays a role in the negative regulation of cytokine production and the positive regulation of B-cell proliferation.

**Synonyms:** - IL-13 - IL-13 - IL13 - Interleukin 13 - interleukin-13