Rat MAG/Siglec-4a Biotinylated Antibody

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Product Details
Supplemental Products

Rat MAG/Siglec-4a Biotinylated Antibody Summary

Species Reactivity
Detects rat MAG/Siglec‑4a in ELISAs and Western blots. In sandwich immunoasays, less than 0.2% cross-reactivity with recombinant mouse Nogo R is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant rat MAG/Siglec‑4a
Accession # P07722
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Rat MAG/Siglec‑4a Fc Chimera (Catalog # 538-MG)
5-15 µg/mL
Perfusion fixed frozen sections of rat brain (cerebellum)

Rat MAG/Siglec-4a Sandwich Immunoassay

Recommended Concentration
ELISA Detection (Matched Antibody Pair)
0.1-0.4 µg/mL 

Use in combination with:

Capture Reagent: Rat MAG/Siglec‑4a Antibody (Catalog # MAB5381)

Standard: Recombinant Rat MAG/Siglec-4a Fc Chimera Protein, CF (Catalog # 538-MG)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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.

Background: MAG/Siglec-4a

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.

  1. Kelm, S. et al. (1994) Current Biology 4:965.
  2. McKerracher, L. et al. (1994) Neuron 13:805.
  3. Tang, S. et al. (1997) Molecular and Cellular Neuroscience 9:333.
  4. Cai, D. et al. (1999) Neuron 22:89.
Long Name
Myelin-associated Glycoprotein
Entrez Gene IDs
4099 (Human); 17136 (Mouse); 29409 (Rat)
Alternate Names
GMAsialic acid binding Ig-like lectin 4A; MAG; myelin associated glycoprotein; myelin-associated glycoprotein; sialic acid-binding immunoglobulin-like lectin 4A; Siglec4a; Siglec-4a; S-MAG

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