Recombinant Mouse ICAM-1-Fc Chimera (carrier-free)

Pricing & Availability
Other Names
CD54, Ly-47, MALA-2, Intercellular adhesion molecule 1 (ICAM-1)
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Product Citations
publications
ICAM_Mouse_Recombinant_Protein_BA_062514.jpg
Retinoic acid activated HL60 cells are able to bind to immobilized mouse ICAM-1-Fc chimera in a dose dependent manner. Over 80% of the cells were able to bind mouse ICAM-1 at a dose greater than 12.5 µg/ml (100 µl/well).
  • ICAM_Mouse_Recombinant_Protein_BA_062514.jpg
    Retinoic acid activated HL60 cells are able to bind to immobilized mouse ICAM-1-Fc chimera in a dose dependent manner. Over 80% of the cells were able to bind mouse ICAM-1 at a dose greater than 12.5 µg/ml (100 µl/well).
Cat # Size Price Quantity Avail. Save
553004 25 µg $125
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553006 100 µg $295
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Description

ICAM-1, intercellular adhesion molecule 1, is a member of the immunoglobulin superfamily. Structurely, ICAM-1 is characterized by heavy glycosylation with an extracellular domain composed of multiple loops created by disulfide bridges within the protein. The dominant secondary structure of the protein is the beta sheet, leading investigators to hypothesize the presence of dimerization domains within ICAM-1. This protein is constitutively expressed at low levels on the cell surface of leukocytes, endothelial cells, macrophages, and lymphocytes. Upon cytokine activation, by cytokines such as IL-1 and TNFα, the concentration of ICAM-1 on the cell surface greatly increases. The ligand of ICAM-1 is LFA-1 (leukocyte function associated antigen 1), which is found on all T cells. LFA-1/ICAM-1 interaction has been shown to be important for T cell-T cell interactions, which leads to further T cell differentiation. ICAM-1 was found to play a role in infectious diseases, as it was identified as the binding target for entry of the major group of human rhinoviruses into various cell types and is also known for its affinity for Plasmodium falciparum-infected erythrocytes. These findings indicate that ICAM-1 may participate in the pathogenesis of several infectious agents

Product Details
Technical data sheet

Product Details

Reactivity
Mouse
Source
Mouse ICAM-1, amino acids (Gln28 - Asn485) (Accession# NP_034623.1), was expressed in CHO cells with a human IgG1 Fc tag at the C-terminus.
Molecular Mass
The 696 amino acid recombinant protein, with a C-terminal human IgG1 Fc tag, has a predicted molecular mass of approximately 77 kD. The protein migrates near 130 kD by SDS-PAGE in DTT-reducing conditions and near 250 kD in non-reducing conditions. The predicted N-terminal amino acid is Gln.
Purity
>95%, as determined by Coomassie stained SDS-PAGE.
Formulation
0.22 µm filtered protein solution is in PBS.
Endotoxin Level
Less than 1.0 EU per µg of protein as determine by the LAL method.
Concentration
25 µg size is bottled at 100 µg/mL. 100 µg size is lot-specific and bottled at the concentration indicated on the vial (please contact technical support for concentration, or use our Lookup tool if you have a lot number.)
Please note, new lots of the 100 µg size will be lot-specific and may differ from previous lots that had a fixed concentration.
Storage & Handling
Unopened vial can be stored between 2°C and 8°C for up to 2 weeks, at -20°C for up to six months, or at -70°C or colder until the expiration date. For maximum results, quick spin vial prior to opening. The protein can be aliquoted and stored at -20°C or colder. Stock solutions can also be prepared at 50 - 100 µg/mL in appropriate sterile buffer, carrier protein such as 0.2 - 1% BSA or HSA can be added when preparing the stock solution. Aliquots can be stored between 2°C and 8°C for up to one week and stored at -20°C or colder for up to 3 months. Avoid repeated freeze/thaw cycles.
Activity
Immobilized mouse ICAM-1-Fc chimera is able to bind retinoic acid (2 µM, 72 hr) activated HL60 cells (5 x 104 /well) in a dose dependent manner. Over 80% of the cells were able to bind mouse ICAM-1 at a dose greater than 12.5 µg/ml.
Application

Bioassay

Application Notes

BioLegend carrier-free recombinant proteins provided in liquid format are shipped on blue-ice. Our comparison testing data indicates that when handled and stored as recommended, the liquid format has equal or better stability and shelf-life compared to commercially available lyophilized proteins after reconstitution. Our liquid proteins are validated in-house to maintain activity after shipping on blue ice and are backed by our 100% satisfaction guarantee. If you have any concerns, contact us at tech@biolegend.com.

Product Citations
  1. Obino D, et al. 2018. Cell Rep. 25:3110. PubMed
Publication Library

Antigen Details

Structure
Homodimer
Distribution
Antigen presenting cells, endothelial cells.
Function
ICAM-1, expressed on antigen presenting cells, is able to engage the LFA-1 on T cells. This interaction helps the activation and differentiation of T cells upon TCR-MHC stimulation. ICAM-1 participates in leukocyte transendothelial migration. It is induced by IL-1 and TNF-alpha;.
Interaction
T cells.
Ligand/Receptor
LFA-1, MAC-1, fibrinogen.
Bioactivity
Mouse ICAM-1 is able to bind retinoic acid-activated HL60 cells.
Cell Type
Mesenchymal Stem Cells, Embryonic Stem Cells
Biology Area
Cell Biology, Neuroscience, Neuroscience Cell Markers, Cell Adhesion, Stem Cells
Antigen References

1. Bella J, et al. 1998. Proc. Natl. Acad. Sci. 95:4140.
2. Katagiri T, et al. 1996. Blood. 87:4276.
3. Rothlein RD. 1986. J. Immunol. 137:1270.
4. Yang L. et al. 2005. Blood. 106:584.
5. Voraberger G. et al. 1991. J. Immunol. 147:2777.
6. Staunton DE, et al. 1988. Cell 52:925.
7. Greve JM, et al. 1989. Cell 56:839.
8. van Buul JD, et al. 2010. PLoS One 5:e11336.

Gene ID
15894 View all products for this Gene ID
UniProt
View information about ICAM-1 on UniProt.org

Related FAQs

Does specific activity of a recombinant protein vary between lots?

Specific activity will vary for each lot and for the type of experiment that is done to validate it, but all passed lots will have activity within the established ED50 range for the product and we guarantee that our products will have lot-to-lot consistency. Please conduct an experiment-specific validation to find the optimal ED50 for your system.

Have your recombinants been tested for stability?

Our testing shows that the recombinant proteins are able to withstand room temperature for a week without losing activity. In addition the recombinant proteins were also found to withstand four cycles of freeze and thaw without losing activity.

How do you convert activity as an ED50 in ng/ml to a specific activity in Units/mg?
Use formula Specific activity (Units/mg) = 10e6/ ED50 (ng/mL)
How does the activity of your recombinant proteins compare to competitors?

We quality control each and every lot of recombinant protein. Not only do we check its bioactivity, but we also compare it against other commercially available recombinant proteins. We make sure each recombinant protein’s activity is at least as good as or better than the competition’s. In order to provide you with the best possible product, we ensure that our testing process is rigorous and thorough. If you’re curious and eager to make the switch to BioLegend recombinants, contact your sales representative today!

What is the specific activity or ED50 of my recombinant protein?

The specific activity range of the protein is indicated on the product datasheets. Because the exact activity values on a per unit basis can largely fluctuate depending on a number of factors, including the nature of the assay, cell density, age of cells/passage number, culture media used, and end user technique, the specific activity is best defined as a range and we guarantee the specific activity of all our lots will be within the range indicated on the datasheet. Please note this only applies to recombinants labeled for use in bioassays. ELISA standard recombinant proteins are not recommended for bioassay usage as they are not tested for these applications.

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For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.

 

*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.

 

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