ICOS Protein, Mouse, Recombinant, Biotinylated

1/1
Price:
Size:
Number:

ICOS Protein, Mouse, Recombinant, Biotinylated: Product Information

Purity
> 90 % as determined by SDS-PAGE.
Endotoxin
< 1.0 EU per μg protein as determined by the LAL method.
Biotin/Protein Ratio
0.7-1 as determined by the HABA assay.
Activity
Testing in progress
Protein Construction
A DNA sequence encoding the human ICOS (NP_059508.2) (Met1-Leu142) was expressed with a c-terminal Fc region of human IgG1 tagged AVI tag at the C-terminus. The expressed protein was biotinylated in vivo by the Biotin-Protein ligase (BirA enzyme) which is co-expressed.
Expressed Host
HEK293 Cells
Species
Mouse
Predicted N Terminal
Glu 21
Molecule Mass
The recombinant human ICOS consists of 375 amino acids and predicts a molecular mass of 42.4 kDa.
Formulation
Lyophilized from sterile PBS, pH 7.4.
Please contact us for any concerns or special requirements.
Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the hard copy of CoA.
Shipping
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃
Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

ICOS Protein, Mouse, Recombinant, Biotinylated: Images

ICOS Protein, Mouse, Recombinant, Biotinylated: Alternative Names

AILIM Protein, Mouse; CCLP Protein, Mouse; CRP-1 Protein, Mouse; H4 Protein, Mouse; Ly115 Protein, Mouse

ICOS Background Information

Inducible costimulator (ICOS), also called AILIM (activiation-inducible lymphocyte immunomediatory molecule) is a cell-surface receptor, and belongs to the CD28 family of immune costimulatory receptors consisting of CD28, CTLA-4 and PD-1. The interaction of B7-H2/ICOS plays a critical role in Th cell differentiation, T−B cell interactions which is essential for germinal center formation, and humoral immune responses, and as well as the production of cytokine IL-4. In addition, ICOS is more potent in the induction of IL-1 production, a cytokine important for suppressive function of T regulatory cells. The B7-1/B7-2--CD28/CTLA-4 and ICOS-B7RP-1 pathway provides key second signals that can regulate the activation, inhibition and fine-tuning of T-lymphocyte responses. ICOS stimulates both Th1 and Th2 cytokine production but may have a preferential role in Th2 cell development. Moreover, The B7-1/B7-2-CD28/CTLA-4 and ICOS-B7RP-1 pathway has been suggested of being involved in the development of airway inflammation and airway hyperresponsiveness.
Full Name
inducible T-cell co-stimulator
References
  • Coyle AJ, et al. (2004) The role of ICOS and other costimulatory molecules in allergy and asthma. Springer Semin Immunopathol. 25(3-4): 349-59.
  • Chen YQ, et al. (2006) CD28/CTLA-4--CD80/CD86 and ICOS--B7RP-1 costimulatory pathway in bronchial asthma. Allergy. 61(1): 15-26.
  • van Berkel ME, et al. (2006) CD28 and ICOS: similar or separate costimulators of T cells Immunol Lett. 105(2): 115-22.
Add to Cart Successfully Add to Cart Failed Shopping cart is being updated, please wait