B-Lymphocyte Antigen CD20

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** B-lymphocyte antigen CD20 (297 aa, ~33 kDa) is encoded by the human MS4A1 gene. This protein plays a role in both the activation and proliferation of B-cells.

**Synonyms:** - B-Lymphocyte Surface Antigen B1 - B1 - Bp35 - CD20 - CD20 - CD20 - CD20 Antigen - CD20 Receptor - Leu-16 - MS4A1 - Membrane-Spanning 4-Domains Subfamily A Member 1