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Recombinant Human Thymic Stromal Lymphopoietin

DESCRIPTION CATALOG # SIZE PRICE
Recombinant Human Thymic Stromal Lymphopoietin CRP08105 1mg Please Inquiry
Product Detail
Cat
CRP08105
Product Overview
Recombinant Human Thymic Stromal Lymphopoietin produced in E. coli is a single non-glycosylated polypeptide chain containing 132 amino acids and having a molecular mass of approximately 15.0 KDa,
Specificity
Fully biologically active when compared to standard. The ED50 as measured by its ability to induce proliferation of human IL-7Rα and human TSLP R co-transfected mouse BaF3 cells is less than 0.3 ng/ml.in a viral resistance assay was found to be no less than 1.0 x 107 IU/mg.
Endotoxin
Less than 1EU/mg of rHuTSLP as determined by LAL method.
Purity
>98% by SDS-PAGE and HPLC analyses.
Storage
This lyophilized preparation is stable for several weeks at 2-8°C, but should be kept at -20°C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8°C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20°C to -70°C. Avoid repeated freeze/thaw cycles.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/ml. Stock solutions should be apportioned into working aliquots and stored at <-20°C. Further dilutions should be made in appropriate buffered solutions.
Background
Antigen Description
TSLP is a hemopoietic protein that is expressed in the heart, liver and prostate. TSLP overlaps biological activities with IL-7 and binds with the heterodimeric receptor complex consisting of the IL-7R alpha chain (IL-7Rα) and the TSLP-specific chain (TSLPR). Like IL-7, TSLP induces phosphorylation of STAT3 and STAT5, but uses kinases other than the JAKs for activation. TSLP prohibited apoptosis and stimulated growth of the human acute myeloid leukemia (AML)-derived cell line MUTZ3. It induces the release of T cell-attracting chemokines TARC and MDC from monocytes and activates CD11c(+) dendritic cells (DCs). TSLP activated DCs primed naive T cells to produce the proallergic cytokines (IL-4, IL-5, IL-13, TNFα) while down-regulating IL-10 and IFN-γ suggesting a role in initiating allergic inflammation.
Function
cytokine activity
Gene ID
85480
Synonyms
Thymic Stromal Lymphopoietin; Thymic stromal lymphopoietin Precursor
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