Name: Human IL-7 Protein (IL7-HE001)
Brand: KactusBio
SKU: IL7-HE001-100UG
Price: 231.0 USD
Availability: InStock

Express System: E.coli
Product Tag: No Tag
Purity: > 95% as determined by Bis-Tris PAGE;> 95% as determined by HPLC
Activity: Immobilized Human IL-7 at 2ug/ml (100ul/Well) on the plate. Dose response curve for Human IL-7R alpha, hFc Tag with the EC50 of 16.2ng/ml determined by ELISA (QC tested). The affinity constant of 7.15 nM as determined in SPR assay (Biacore T200). See testing image for detail.
Amino Acid Range: Asp26-His177

Catalog #IL7-HE001

Size

100UG

500UG

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Product Description	Recombinant Human IL-7 Protein is expressed from E.coli without tag.It contains Asp26-His177.
Product Background	Interleukin-7 (IL7) plays a nonredundant role in T cell survival and homeostasis, which is illustrated in the severe T cell lymphopenia of IL7-deficient mice, or demonstrated in animals or humans that lack expression of either the IL7Rα or γ c chain, the two subunits that constitute the functional IL7 receptor.
Product Category	Recombinant Protein / Antibody discovery / Antibody discovery \| Others

Protein	IL-7
Synonyms	IL7; Interleukin-7; IL-7; Lymphopoietin-1; PBGF
Accession	P13232
Species	Human
Biotinylated	no
Amino Acid Range	Asp26-His177
Molecular Weight	The protein has a predicted MW of 17.5 kDa same as Bis-Tris PAGE result.
Activity	Immobilized Human IL-7 at 2ug/ml (100ul/Well) on the plate. Dose response curve for Human IL-7R alpha, hFc Tag with the EC50 of 16.2ng/ml determined by ELISA (QC tested). The affinity constant of 7.15 nM as determined in SPR assay (Biacore T200). See testing image for detail.
Product Tag	No Tag
Expression System	E.coli
Purity	> 95% as determined by Bis-Tris PAGE;> 95% as determined by HPLC
Endotoxin	Less than 0.01 EU per ug by the LAL method.

Form	Lyophilized
Shipping	Shipped at ambient temperature.
Formulation	Lyophilized from 0.22 um filtered solution in PBS (pH 8.0). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Dissolve the lyophilized protein in distilled water. It is recommended to resuspend at 0.5 mg/mL if the lyophilized powder is 100 ug or less, at 1mg/ml for 500ug or 1mg lyophilized powder. Do not mix by vortex or vigorous shaking.
Stability And Storage	-20 to -80°C for 12 months as supplied from date of receipt.；-80°C for 3 months after reconstitution.；Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.

	Human IL-7 R alpha, His Tag captured on CM5 Chip via anti-his antibody can bind Human IL-7, No Tag with an affinity constant of 7.15 nM as determined in SPR assay (Biacore T200).
	Immobilized Human IL-7 at 2ug/ml (100ul/Well) on the plate. Dose response curve for Human IL-7R alpha, hFc Tag with the EC50 of 16.2ng/ml determined by ELISA (QC tested).
	Human IL-7 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
	Measured in a cell proliferation assay using murine 2E8 cells. The ED50-for this effect is-0.1 - 0.5 ng/mL (QC tested).
	The purity of Human IL-7 is greater than 95% as determined by SEC-HPLC.