Recombinant Rat MAG/Siglec‑4a Fc Chimera (Catalog # 538-MG)
Measured by its ability to neutralize MAG/Siglec-4a-mediated adhesion of human red blood cells. Kelm, S. et al. (1994) Current Biology 4:965. At 40 μg/mL, Mouse Anti-Rat MAG/Siglec-4a Monoclonal Antibody will neutralize approximately 60-85% of Recombinant Rat MAG/Siglec-4a Fc Chimera-dependent adhesion of human red blood cells.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
Cell Adhesion Mediated by MAG/Siglec-4a and Neutralization by Rat MAG/Sigle-4a Antibody.
Recombinant Rat MAG/Siglec-4a Fc Chimera (Catalog # 538-MG), immobilized onto a microplate, supports the adhesion of human red blood cells in a dose-dependent manner (orange line). Adhesion elicited by Recombinant Rat MAG/Siglec-4a Fc Chimera (6 µg/mL) is neutralized (green line) by increasing concentrations of Mouse Anti-Rat MAG/Siglec-4a Monoclonal Antibody (Catalog # MAB538). At 40 µg/mL, this antibody will neutralize approximately 60-85% of Recombinant Rat MAG/Siglec-4a-dependent adhesion of human red blood cells.
Preparation and Storage
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
MAG (Myelin-Associated Glycoprotein), a type I transmembrane glycoprotein containing five Ig-like domains in its extracellular domain is an adhesion molecule belonging to the immunoglobin superfamily. Within this superfamily, MAG, CD22, CD33, Schwann cell myelin protein, and sialoadhesin which bind specifically to cell‑surface glycan containing sialic acid residues define the I-type sialyl lectin subgroup, also called the sialoadhesin family. Sialoadhesins mediate diverse biological processes through recognition of specific sialyted glycans on cell surface. MAG is expressed on myelinating oligodenrocytes and Schwann cells, and preferentially recognizes alpha 2, 3-linked sialic acid on O-linked glycans and gangliosides. MAG exists as two isoforms which differ in the sequence and length of the cytoplasmic tail. The large form (71 kDa) and small form (67 kDa) arise from alternative spliced mRNAs. Although MAG might encounter haematopoietic cells and lymphocytes under pathologic conditions, it would normally be expected to interact with neuronal cells. It has been shown that MAG promotes axonal growth from neonatal DRG neurons and embryonic spinal neurons, but is a potent inhibitor of axonal re-growth from adult DRG and postnatal cerebellar neurons. MAG plays an important role in the interaction between axons and myelin. A soluble form of MAG containing the extracellular domain is released from myelin in large quantities and identified in normal human tissues and in tissues from patients with neurological disorders. This soluble MAG might contribute to the lack of CNS neuron regeneration after injury.
Kelm, S. et al. (1994) Current Biology 4:965.
McKerracher, L. et al. (1994) Neuron 13:805.
Tang, S. et al. (1997) Molecular and Cellular Neuroscience 9:333.
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