Interleukin-3

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

**Definition:** Interleukin-3 (152 aa, ~17 kDa) is encoded by the human IL3 gene. This protein plays a role in neurotrophic activity and the proliferation of several types of hematopoietic lineage cells.

**Synonyms:** - Colony-Stimulating Factor 2 Alpha - Eosinophil-Mast Cell Growth-Factor - Erythrocyte Burst-Promoting Factor - IL-3 - IL-3 - IL-3 - IL3 - IL3 Protein - Interleukin 3 - Interleukin 3 Precursor - MCGF - MULTI-CSF - Mast Cell Growth Factor - Mast-Cell Colony-Stimulating Factor - Mast-Cell Growth Factor - Multilineage-Colony-Stimulating Factor - Multipotential Colony-Stimulating Factor - P-Cell Stimulating Factor - P-Cell-Stimulating Factor