Recombinant Human Mer Fc Chimera Avi-tag Protein, CF

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Tyrosine-protein Kinase Mer, also known as c-Mer and MerTK, is a member of the receptor tyrosine kinase subfamily TAM (Tyro3, Axl, and Mer). Mature human Mer consists of 485 aa extracellular domain, 21 aa transmembrane domain, and 473 aa cytoplasmic domain. Within the extracellular domain, human Mer shares 77.2% and 76.6% homology with mouse and rat Mer, respectively. Similar to Axl and Tyro3, the extracelluar domain of Mer contains two Ig-like motifs and two fibronectin type III motifs. Mer is not expressed in normal B- and T-cells but expressed in neoplastic B- and T-cell lines (1-2).  It is also show higher expression in immunosuppressive M2‑like macrophages (3).  Mer is known to bind Gas6, Protein S, Tubby, Tubby-like protein 1 (Tulp1), and Galectin-3 (4-7). Upon binding ligands via the Ig-like motif, Mer is dimerized to trans-autophosphorylate the kinase domain to induce downstream signaling. It has been shown that Mer signaling in macrophages induces M2 polarization, which promote tumor growth, metastasis and evasion of anti-tumor immunity in tumor microenviroment (8). Inhibition of Mer, especially on leukocytes and macrophages, is an effective anti-cancer therapy (9). Our Avi-tag Biotinylated Mer Fc Chimera features biotinylation at a single site contained within the Avi-tag, a unique 15 amino acid peptide. Protein orientation will be uniform when bound to streptavidin-coated surface due to the precise control of biotinylation and the rest of the protein is unchanged so there is no interference in the protein's bioactivity.

Array AVI891

• Mer Antibodies
• Mer Lysate
• Mer Protein
• Mer Proteins and Enzymes
• Mer ELISAs