PROVETOP

Biotinylated Human Siglec-4a/MAG Protein

Catalog No: MAG-HB001

Species
Human
Expression System
HEK293
Tag
His, Avi
Activity
Activity verified

Product overview

Recombinant Biotinylated Human Siglec-4a/MAG Protein is expressed in HEK293 cells with a His tag and Avi tag at the C-terminus. It contains amino acid residues Gly20-Pro516 (UniProt accession: P20916).

Product Details

Molecular Aliases
MAG; Siglec4a; Siglec-4a; S-MAG; GMA
Protein Length
Gly20-Pro516
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 57.6 kDa. Due to glycosylation, the protein migrates to 78-85 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 24 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
MAG-HB001 Bis-Tris-PAGE result

Biotinylated Human Siglec-4a on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
MAG-HB001 SEC-HPLC result

The purity of Biotinylated Human Siglec-4a is greater than 95% as determined by SEC-HPLC.

ELISA
MAG-HB001 ELISA result

Immobilized Biotinylated Human Siglec-4a, His Avi tag at 0.5μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Anti-Siglec-4a Antibody, hFc Tag with the EC50 of 3.5ng/ml determined by ELISA. (QC Test)

Background

Siglec-4a, also known as Myelin-Associated Glycoprotein (MAG), is a type I transmembrane glycoprotein belonging to the Siglec family, a subgroup of the Ig superfamily. Adhesion molecule that mediates interactions between myelinating cells and neurons by binding to neuronal sialic acid-containing gangliosides and to the glycoproteins RTN4R and RTN4RL2 (By similarity).

References

  1. Macauley M S, Crocker P R, Paulson J C. Siglec-mediated regulation of immune cell function in disease[J]. Nature Reviews Immunology, 2014, 14(10):653-666.

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