Specifications
- SPECIES: Mouse
- SOURCE SPECIES: HEK293 cells
- RECOMBINANT PROTEIN SEQUENCE: Glu 21 - Leu 144
- FUSION TAG: Fc Tag
- TESTED APPLICATIONS: ELISA, WB
- APPLICATION NOTE: This protein carries a human IgG1 Fc tag at the C-terminus. The protein has a calculated MW of 40.6 kDa. The protein migrates as 45-55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
- PREDICTED MOLECULAR WEIGHT: 40.6 kDa
Properties
- PURITY: >95% as determined by SDS-PAGE.
- PHYSICAL STATE: Lyophilized
- BUFFER: Tris with Glycine, Arginine and NaCl, pH7.5
- STORAGE CONDITIONS: Lyophilized Protein should be stored at -20°C or lower for long term storage. Upon reconstitution, working aliquots should be stored at -20°C or -70°C. Avoid repeated freeze-thaw cycles.
Additional Info
- NCBI OFFICIAL SYMBOL: Icos
- ADDITIONAL NAMES: ICOS,CD278,AILIM,Inducible T-cell costimulator
- Protein Accession Number: NP_059508.2 (C137S,C138S)
- NCBI GENE ID NUMBER: 54167
Background
- Inducible T-cell costimulator (ICOS) is also known as Activation-inducible lymphocyte immunomediatory molecule (AILIM), CD278, which belongs to the CD28 family of immune costimulatory receptors consisting of CD28, CTLA-4 and PD-1. ICOS enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. CD278 / ICOS prevents the apoptosis of pre-activated T-cells and also plays a critical role in CD40-mediated class switching of immunoglobin isotypes.
- 1: Hutloff A., et al., 1999, Nature 397:263-266.
- 2: Tezuka K., et al., 2000, Biochem. Biophys. Res. Commun. 276:335-345.
- 3: Beier K.C., et al., 2000, Eur. J. Immunol. 30:3707-3717.
Disclaimer
- FOR RESEARCH USE ONLY
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