Human LAG3/CD223 Protein
Catalog No: CD223-HF001
- Species
- Human
- Expression System
- HEK293
- Tag
- an hFc (IgG1)
- Activity
- Activity verified
Product overview
Recombinant Human LAG3/CD223 Protein is expressed in HEK293 cells with an hFc (IgG1) tag at the C-terminus. It contains amino acid residues Leu23-Leu450 (UniProt accession: P18627-1).
Product Details
- Molecular Aliases
- CD223; FDC; LAG3; LAG-3; sLAG-3;sLAG3
- Protein Length
- Leu23-Leu450
- Expression System
- HEK293
- Theoretical Molecular Weight
- The protein has a predicted MW of 72.4 kDa. Due to glycosylation, the protein migrates to 75-80 kDa based on Bis-Tris PAGE result.
- Purity
- > 90% as determined by Bis-Tris PAGE > 90% 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
Human LAG3 on Bis-Tris PAGE under reduced condition. The purity is greater than 90%
The purity of Human LAG3 is greater than 90% as determined by SEC-HPLC.
Immobilized Human FGL1, His Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Human LAG3, hFc Tag with the EC50 of 75.1ng/ml determined by ELISA.
Background
LAG-3, is a protein which in humans is encoded by the LAG3 gene, which is a cell surface molecule with diverse biologic effects on T cell function. It is an immune checkpoint receptor and as such is the target of various drug development programs by pharmaceutical companies seeking to develop new treatments for cancer and autoimmune disorders.
References
- Wang, J., Sanmamed, M.F., Datar, I., Su, T.T., Ji, L., Sun, J., Chen, L., Chen, Y., Zhu, G., Yin, W., et al. (2019). Fibrinogen-like Protein 1 Is a Major Immune Inhibitory Ligand of LAG-3. Cell 176, 334-347.e312. Note: HPLC results always come from liquid protein, due to absorption peak interference of trehalose in lyophilized powder.
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