Recombinant Mouse TSLP R Fc Chimera (Catalog # 546-TR)
2.5 µg/106 cells
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
Measured by its ability to neutralize TSLP-induced proliferation in the BaF3 mouse pro‑B cell line transfected with mouse IL‑7 R alpha /CD127. Park, L.S. et al. (2000) J. Exp. Med. 192:659. The Neutralization Dose (ND50) is typically 0.2-0.6 µg/mL in the presence of 7.5 ng/mL Recombinant Mouse TSLP.
Please Note: Optimal dilutions should be determined by each laboratory for each application.
are available in the Technical Information section on our website.
Detection of TSLP R in Mouse Splenocytes by Flow Cytometry.
Mouse splenocytes were stained with Goat Anti-Mouse TSLP R Antigen Affinity-purified Polyclonal Antibody (Catalog # AF546, filled histogram) or control antibody (Catalog # AB-108-C, open histogram), followed by Allophycocyanin-conjugated Anti-Goat IgG Secondary Antibody (Catalog # F0108).
Cell Proliferation Induced by TSLP and Neutralization by Mouse TSLP R Antibody.
Recombinant Mouse TSLP (Catalog # 555-TS) stimulates proliferation in the BaF3 mouse pro‑B cell line transfected with mouse IL‑7 R alpha /CD127 in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Mouse TSLP (7.5 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse TSLP R Antigen Affinity-purified Polyclonal Antibody (Catalog # AF546). The ND50 is typically 0.2-0.6 µg/mL.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: TSLP R
TSLP R, also named Delta (1) and CRLM-2 (2) (cytokine receptor-like module-2), was originally cloned as a novel type 1 cytokine receptor with similarity to the common gamma chain. It was subsequently identified to be a subunit of the cellular receptor for the IL-7-like cytokine TSLP and termed TSLP R (3). The TSLP R cDNA encodes a 359 amino acid (aa) residue type 1 membrane protein with a 24 aa residue signal peptide, a 206 aa residue extracellular domain that showed 24% sequence identity with the mouse common gamma receptor, a 23 aa residue transmembrane domain, and a 106 aa residue cytoplasmic domain. The cytoplasmic domain of TSLP R contains a membrane-proximal box1 motif which is known to be important for association with JAKs. An alternatively spliced mRNA variant encoding a soluble TSLP R has also been reported (2). TSLP R expression is ubiquitous in the immune and hematopoietic cells, but is up-regulated in Th2-skewed cells. Cells expressing TSLP R alone bind TSLP with low affinity. Co-expression of TSLP R and IL-7 R alpha is required for high-affinity TSLP binding and signal transduction (3, 4).
Fujio, K. et al. (2000) Blood 95:2204.
Hiroyama, T. et al. (2000) Biochem. Biophys. Res. Commun. 272:224.
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