Human IL-33 Protein (IL3-HE001)

Express System: E.coli
Product Tag: No Tag
Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Activity: Immobilized Human IL-33, No Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for Human IL-1RL1, His Tag with the EC50 of 6.1ng/ml determined by ELISA. See testing image for detail.
Exact Sequence: Ser112-Thr270

Catalog: IL3-HE001

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Product Description	Recombinant Human IL-33 Protein is expressed from E.coli without tag.It contains Ser112-Thr270.
Product Background	Interleukin-33 (IL-33) is a cytokine belonging to the IL-1 family, playing a role in inflammatory, infectious and autoimmune diseases and expressed in the cellular nucleus in several tissues. High levels of IL-33 are expressed in epithelial barrier tissues and endothelial barriers. ST2 is a receptor for IL-33, expressed selectively on a subset of Th2 cells, mediating some of their functions.
Product Category	Recombinant Protein

Target	IL-33
Synonyms	C9orf26 Z; DVS27; IL1F11; NF-HEV; NFEHEV; IL33; DV27; C9ORF26; RP11-575C20.2
Gene/Protein ID	NP_254274.1
Species	Human
Exact Sequence	Ser112-Thr270
Molecular Weight	The protein has a predicted MW of 18 kDa same as Tris-Bis PAGE result.
Activity	Immobilized Human IL-33, No Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for Human IL-1RL1, His Tag with the EC50 of 6.1ng/ml determined by ELISA. See testing image for detail.
Product Tag	No Tag
Express System	E.coli
Purity	> 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Endotoxin	Less than 1EU per ug by the LAL method.

Form	Lyophilized
Shipping	Shipped at ambient temperature.
Formulation	Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution	Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability And Storage	Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

	Immobilized Human IL-33, No Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for Human IL-1RL1, His Tag with the EC50 of 6.1ng/ml determined by ELISA.
	The purity of Human IL-33 is greater than 95% as determined by SEC-HPLC.
	Human IL-33 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.