Mouse MCAM/CD146 Alexa Fluor™ Plus 555‑conjugated Antibody

MCAM (Melanoma cell adhesion molecule; also CD146 and MUC18) is a 110‑120 kDa member of a small group of Ig‑superfamily molecules that includes CD239 and CD166. MCAM has also been reported at a molecular weight of approximately 150 kDa. In rodent, MCAM is reportedly expressed on neurons, endothelial cells, NK cells, neutrophils, mesenchymal stem cells and melanoma cells. MCAM appears to contribute to intercellular endothelial cell junctions, and possibly contributes to the migration of select cell types. Mature mouse MCAM is a 625 amino acid (aa) type I transmembrane glycoprotein. Its extracellular region is 540 aa in length (aa 24‑563). It contains two V‑type Ig‑like domains (aa 24‑244) followed by three C2‑type Ig‑like domains (aa 246‑512). One cytoplasmic region splice form shows a seven aa substitution for aa 600‑648. Unlike human, rodent MCAM does not undergo a splicing event that will generate a soluble isoform. Over aa 24‑563, mouse MCAM shares 90% and 74% aa identity with rat and human MCAM, respectively.