Tumor Necrosis Factor Receptor Superfamily Member 5

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

**Definition:** Tumor necrosis factor receptor superfamily member 5 (277 aa, ~31 kDa) is encoded by the human CD40 gene. This protein is involved in the positive regulation of immunoglobulin secretion.

**Synonyms:** - B Cell Surface Antigen CD40 - B Cell-Associated Molecule CD40 - CD40 - CD40 Antigen - CD40 Type II Isoform - CD40L Receptor - CDw40 - Nerve Growth Factor Receptor-Related B-Lymphocyte Activation Molecule - TNFRSF5