PROVETOP

Human CD24 Protein

Catalog No: CD24-HF003

Species
Human
Expression System
HEK293
Tag
an mFc (IgG1)
Activity
Activity verified

Product overview

Recombinant Human CD24 Protein is expressed in HEK293 cells with an mFc (IgG1) tag at the C-terminus. It contains amino acid residues Ser27-Gly59 (UniProt accession: P25063-1).

Product Details

Molecular Aliases
CD 24; CD24 molecule; CD24A; FLJ22950; FLJ43543; MGC75043;CD24
Protein Length
Ser27-Gly59
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 29.5 kDa. Due to glycosylation, the protein migrates to 48-60 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 12 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
CD24-HF003 Bis-Tris-PAGE-white result

Human CD24 on Bis-Tris PAGE under reduced conditions. The purity is greater than 95%.

SEC-HPLC
CD24-HF003 SEC-HPLC result

The purity of Human CD24 is greater than 95% as determined by SEC-HPLC.

ELISA
CD24-HF003 ELISA result

Immobilized Human CD24, mFc Tag at 2μg/ml (100μl/well) on the plate. Dose response curve for Anti-CD24 Antibody, hFc Tag with the EC50 of 54.3ng/ml determined by ELISA (QC Test).

Background

CD24 is a sialoglycoprotein expressed at the surface of most B lymphocytes and differentiating neuroblasts. It is also expressed on neutrophils and neutrophil precursors from the myelocyte stage onwards. The potential for targeting CD24 in cancer therapy seems promising, as CD24 is overexpressed in many human cancers.

References

  1. Barkal AA, et al.CD24 signalling through macrophage Siglec-10 is a target for cancer immunotherapy.Nature. 2019 Jul 31. doi: 10.1038/s41586-019-1456-0. Note: HPLC results always come from liquid protein, due to absorption peak interference of trehalose in lyophilized powder.

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