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Human CD278/ICOS Recombinant Protein (C-Fc) (HV702011)

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Human CD278/ICOS Recombinant Protein (C-Fc)

Human CD278/ICOS Recombinant Protein (C-Fc)

Human CD278/ICOS Recombinant Protein (C-Fc)

Human CD278/ICOS Recombinant Protein (C-Fc)

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References
Datasheet
SDS

Overview

Catalog No.	HV702011
Description	Recombinant Human CD278/ICOS Protein, C-Fc (HV702011) expressed in Mammalian Cells, spanning Met1-Lys140. Highlights ●Fc Fusion — Enhanced stability with Protein A/G purification compatibility. ●Mammalian Expression — Proper folding and native glycosylation. ●High Purity — >90% purity verified by SDS-PAGE.
Expression system	Mammalian Cells
Accession	Q9Y6W8
Protein length	Met1-Lys140
Applications	ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
Species	Homo sapiens (Human)
Nature	Recombinant
Endotoxin level	Please contact with the lab for this information.
Purity	>95% as determined by SDS-PAGE.
Predicted molecular weight	42.39 kDa
Form	Lyophilized
Storage buffer	Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
Reconstitution	Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet. RECONSTITUTION PROTOCOL 1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature. 2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial. 3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service. 4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down. 5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using. 6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended.
Shipping	In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Stability and Storage	Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Alternate Names	CD278, ICOS, Inducible T-cell costimulator, Activation-inducible lymphocyte immunomediatory molecule, AILIM
Background	Inducible T-cell costimulator (CD278/ICOS) is a ~22 kDa protein. Stimulatory receptor expressed in activated or antigen-experienced T-cells that plays an important role in the immune response. Upon binding to its ligand ICOSL expressed on antigen presenting cells (APCs), delivers costimulatory signals that enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines including IL10, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. Also acts as a costimulatory receptor critical for the differentiation of T follicular regulatory cells upon immune challenges such as viral infection. Mechanistically, potentiates TCR-induced calcium flux by augmenting PLCG1 activation and actin remodeling. In addition, activates PI3K signaling pathways independently of calcium flux. 1. Hutloff, A. et al. (1999) Nature 397, 263-6. PMID: 9930702 2. Rujas, E. et al. (2020) Nature communications 11, 5066. PMID: 33033255 3. Pedros, C. et al. (2016) Nature immunology 17, 825-33. PMID: 27135603 4. Wan, Z. et al. (2020) Cellular & molecular immunology 17, 143-152. PMID: 30523347
Note	For research use only.

Images

SDS-PAGE

SDS-PAGE for Recombinant Human CD278/ICOS Protein, C-Fc
Western blot

Detected by Anti-CD278/ICOS monoclonal antibody (Catalog No: HV702016)

References

HV702011-SDS-PAGE-1.jpg

Datasheet

Human CD278/ICOS Recombinant Protein (C-Fc).pdf

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Formula

Mass (g) = Concentration (mol/L) × Volume (L) × MW (g/mol)

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Formula

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Stock Solution

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Working Solution

C₂ (Working Conc.)

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Human CD278/ICOS Recombinant Protein (C-Fc)