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ICOS Protein, Human, Recombinant (aa 21-134, His)

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ICOS Protein, Human, Recombinant (aa 21-134, His)

Catalog No. TMPK-00086

Inducible co-stimulator (ICOS), also called AILIM (activiation-inducible lymphocyte immunomediatory molecule) and CRP-1 (CD28-related protein-1), is a member of the growing CD28 family of immune costimulatory receptors. Other family members are CD28, CTLA-4 and PD-1. Human ICOS is a homodimeric type I transmembrane protein consisting of 199 amino acids (aa) with a putative 20 aa signal sequence, a 121 aa extracellular domain, a 23 aa transmembrane region, and a 35 aa cytoplasmic domain. ICOS Protein, Human, Recombinant (aa 21-134, His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 14.6 kDa and the accession number is Q9Y6W8-1.

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Pack Size	Price	Availability
100 μg	$487	7-10 days
500 μg	$1,950	7-10 days
1 mg	$3,250	7-10 days

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Biological Description

Biological Information	Immobilized Human ICOS, His Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Human B7-H2, hFc Tag with the EC50 of 22.7ng/ml determined by ELISA.
Description	Inducible co-stimulator (ICOS), also called AILIM (activiation-inducible lymphocyte immunomediatory molecule) and CRP-1 (CD28-related protein-1), is a member of the growing CD28 family of immune costimulatory receptors. Other family members are CD28, CTLA-4 and PD-1. Human ICOS is a homodimeric type I transmembrane protein consisting of 199 amino acids (aa) with a putative 20 aa signal sequence, a 121 aa extracellular domain, a 23 aa transmembrane region, and a 35 aa cytoplasmic domain. ICOS Protein, Human, Recombinant (aa 21-134, His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 14.6 kDa and the accession number is Q9Y6W8-1.
Species	Human
Expression System	HEK293 Cells
Tag	C-His
Accession Number	Q9Y6W8-1
Synonyms	CRP-1,ICOS,AILIM,CVID1,CD278,MGC39850
Construction	Glu21-Gln134
Protein Purity	> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
Molecular Weight	14.6 kDa (predicted). Due to glycosylation, the protein migrates to 25-35 kDa based on Tris-Bis PAGE result.
Endotoxin	< 1 EU/μg by the LAL method.
Formulation	Supplied as 0.22 μm filtered solution in PBS (pH 7.4).
Stability & Storage	It is recommended to store the product under sterile conditions at -70°C or lower. Samples are stable for up to 12 months at -80°C. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice.
Research Background	Inducible co-stimulator (ICOS), also called AILIM (activiation-inducible lymphocyte immunomediatory molecule) and CRP-1 (CD28-related protein-1), is a member of the growing CD28 family of immune costimulatory receptors. Other family members are CD28, CTLA-4 and PD-1. Human ICOS is a homodimeric type I transmembrane protein consisting of 199 amino acids (aa) with a putative 20 aa signal sequence, a 121 aa extracellular domain, a 23 aa transmembrane region, and a 35 aa cytoplasmic domain.