Mouse ICOS Antibody

Catalog # Availability Size / Price Qty
MAB168
MAB168-SP

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Detection of ICOS in Mouse Splenocytes by Flow Cytometry.
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Mouse ICOS Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse ICOS in direct ELISAs.
Source
Monoclonal Rat IgG2B Clone # 670306
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
NS0 mouse myeloma cell line transfected with mouse ICOS
Accession # Q9WVS0
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Flow Cytometry
2.5 µg/106 cells
See below
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry Detection of ICOS antibody in Mouse Splenocytes antibody by Flow Cytometry. View Larger

Detection of ICOS in Mouse Splenocytes by Flow Cytometry. Mouse splenocytes treated with 1 ug/mL Concanavalin A for 3 days were stained with Rat Anti-Mouse ICOS Monoclonal Antibody (Catalog # MAB168, filled histogram) or isotype control antibody (Catalog # MAB0061, open histogram), followed by Phycoerythrin-conjugated Anti-Rat IgG Secondary Antibody (Catalog # F0105B). View our protocol for Staining Membrane-associated Proteins.

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Preparation and Storage

Reconstitution
Sterile PBS to a final concentration of 0.5 mg/mL.
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Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: ICOS

Mouse ICOS (inducible co-stimulator), also called AILIM (activiation-inducible lymphocyte immunomediatory molecule) and CRP-1 (CD28-related protein-1), is a member of the CD28 family of immune costimulatory receptors. Other family members are CD28, CTLA-4 and PD-1. Mouse ICOS is a homodimeric type I transmembrane protein consisting of 200 amino acids (aa) with a putative 20 aa signal sequence, a 122 aa extracellular domain, a 23 aa transmembrane region, and a 35 aa cytoplasmic domain. ICOS shares approximately 39% aa similarity with CD 28 and CTLA-4. Mouse and human ICOS share approximately 72% aa identity. ICOS is expressed on most CD45RO+ cells. ICOS expression is upregulated within approximately 24‑48 hours of activation on Th primed cells. B7-H2, a member of the B7 family of costimulatory ligands, has been identified as the ICOS ligand. The B7-H2/ICOS interaction appears to play roles in T cell dependent B cell activation and Th differentiation.

References
  1. Coyle, A.J. and J.C. Gutierrez-Ramos (2001) Nat. Immunol. 2:203.
  2. Mages, H.W. et al. (2000) Eur. J. Immunol. 30:1040.
  3. Yoshinaga, S.K. et al. (1999) Nature 402:827.
  4. Hutloff, A. et al. (1999) Nature 397:263.
  5. Aicher, A. et al. (2000) J. Immunol. 164:4689.
  6. Coyle, A.J. et al. (2000) Immunity 13:95.
  7. Gonzalo, J.A. et al. (2001) J. Immunol. 166:1.
Long Name
Inducible Co-stimulator
Entrez Gene IDs
29851 (Human); 54167 (Mouse); 102116512 (Cynomolgus Monkey)
Alternate Names
Activation-inducible lymphocyte immunomediatory molecule; AILIM; AILIMCD278; CD278 antigen; CD278; CRP-1; CVID1; ICOS; inducible costimulator; inducible T-cell costimulator; inducible T-cell co-stimulator; MGC39850

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