catalog number :
MBS553074
products type :
Recombinant Protein
products full name :
Human Thymic stromal lymphopoietin Recombinant
products short name :
Thymic stromal lymphopoietin
products name syn :
TSLP; Thymic stromal lymphopoietin
other names :
thymic stromal lymphopoietin isoform 1; Thymic stromal lymphopoietin
products gene name :
TSLP
uniprot entry name :
TSLP_HUMAN
sequence :
MFPFALLYVL SVSFRKIFIL QLVGLVLTYD FTNCDFEKIK AAYLSTISKD LITYMSGTKS TEFNNTVSCS NRPHCLTEIQ SLTFNPTAGC ASLAKEMFAM KTKAALAIWC PGYSETQINA TQAMKKRRKR KVTTNKCLEQ VSQLQGLWRR FNRPLLKQQ
purity :
>95%, as determined by SDS-PAGE and HPLC
form :
Human TSLP was Lyophilized from a 0.2um filtered concentrated (1.0mg/ml) solution in 20mM PB, pH 7.4, 150mM NaCl.
storage stability :
The lyophilized protein is stable for at least 2 years from date of receipt at -20 degree C. Upon reconstitution, this cytokine can be stored in working aliquots at 2 degree - 8 degree C for one month, or at -20 degree C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.
other info1 :
Host Note: Optimized DNA sequence encoding Human Interleukin-6 mature chain was expressed in Escherichia Coli
other info2 :
Endotoxin: Endotoxin content was assayed using a LAL gel clot method. Endotoxin level was found to be less than 0.1 ng/ug (1EU/ug). Reconstitution: A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers. Molecular Weight Note: Native human TSLP is generated by the proteolytic removal of the signal peptide and propeptide, the molecule has a calculated molecular mass of approximately 15 kDa. Recombinant TSLP is a disulfide-linked monomeric protein consisting of 132 amino acid residue subunits, and migrates as an approximately 15 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE.
products categories :
Cytokines
products references :
TSLP and il-7 use two different mechanisms to regulate human cd4+ t cell homeostasis . J. Exp. Med., Sep 2009; 206: 2111 - 2119. TSLP production by epithelial cells exposed to immunodeficiency virus triggers dc-mediated mucosal infection of cd4+ t cells . PNAS, Sep 2009; 106: 16776 - 16781. helminth products bypass the need for TSLP in th2 immune responses by directly modulating dendritic cell function . PNAS, Aug 2009; 106: 13968 - 13973. TSLP regulates intestinal immunity and inflammation in mouse models of helminth infection and colitis . J. Exp. Med., Mar 2009; 206: 655 - 667.
ncbi acc num :
NP_149024.1
ncbi gb acc num :
NM_033035.4
ncbi mol weight :
18,141 Da
ncbi pathways :
Cytokine-cytokine Receptor Interaction Pathway (83051); Cytokine-cytokine Receptor Interaction Pathway (460); Jak-STAT Signaling Pathway (83077); Jak-STAT Signaling Pathway (488)
ncbi summary :
This gene encodes a hemopoietic cytokine proposed to signal through a heterodimeric receptor complex composed of the thymic stromal lymphopoietin receptor and the IL-7R alpha chain. It mainly impacts myeloid cells and induces the release of T cell-attracting chemokines from monocytes and enhances the maturation of CD11c(+) dendritic cells. The protein promotes T helper type 2 (TH2) cell responses that are associated with immunity in various inflammatory diseases, including asthma, allergic inflammation and chronic obstructive pulmonary disease. The protein is therefore considered a potential therapeutic target for the treatment of such diseases. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Jan 2012]
uniprot summary :
TSLP: Cytokine that induces the release of T-cell-attracting chemokines from monocytes and, in particular, enhances the maturation of CD11c(+) dendritic cells. Can induce allergic inflammation by directly activating mast cells. Protein type: Secreted, signal peptide; Secreted. Chromosomal Location of Human Ortholog: 5q22.1. Cellular Component: extracellular space. Molecular Function: cytokine activity