Recombinant human IL-17A protein
IL17A, also known as Interleukin 17, is a cytokine that acts as a potent mediator in delayed-type reactions by increasing chemokine production in various tissues to recruit monocytes and neutrophils to the site of inflammation. It is produced by T-helper cells and is induced by IL23 which results in destructive tissue damage in delayed-type reactions. This protein is a 155 amino acid protein that is a disulfide-linked, homodimeric, secreted glycoprotein with a molecular mass of 35kDa. The structure of IL17A consists of a signal peptide of 23 amino acids followed by a 123 aa chain region characteristic of the IL17 family. An N-linked glycosylation site on the protein was first identified after purification of the protein revealed two bands, one at 15kDa and another at 20kDa. Recombinant human IL17A, fused to His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.
Product Specifications
Specifications
Human IL-17A stimulates IL-6 secretion of the NIH/3T3 mouse embryonic fibroblast cells. The ED50 range ≤ 7 ng/mL.
Product Name Alternative
Interleukin 17A, IL-17, IL-17A, IL17, CTLA8, Cytotoxic T-lymphocyte-associated protein 8, Cytotoxic T-lymphocyte-associated serine esterase 8
Expression System
Baculovirus
Antigen Species
Human
Tag
His-Tag
Applications
SDS-PAGE, Bioactivity
Concentration
0.25 mg/mL (determined by Bradford assay)
Endotoxin
< 1 EU per 1ug of protein (determined by LAL method)
Purity
> 90% by SDS-PAGE
Bioactivity
The activity is determined by the IL-6 ELISA in a using NIH/3T3 mouse embryonic fibroblast cells. The ED50 range ≤ 7 ng/mL.
Molecular Weight
15.9 kDa (138aa)
Additionnal Information
References & Citations
Yao Z, et al (1995) J Immunol. 155 (12) :5483-6.
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. Phosphate-Buffered Saline (pH 7.4) containing 20% glycerol, 1mM EDTA, 0.1mM PMSF
Scientific Category
Hormones & Cytokines
NCBI Accession Number
NP_002181.1
Uniprot Accession Number
Q16552
Species
Human
N Terminal Sequence
Gly24
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