The B12-1 monoclonal antibody reacts with CD127, the 65-75- kDa type I transmembrane protein IL- 7Rα. The high affinity IL-7 receptor complex is composed of at least two transmembrane proteins, IL-7Rα and CD132, the common γ chain. CD127 has some sequence homology to the cytokine receptor superfamily (also known as the hematopoietin receptor superfamily). Interaction between IL-7 and its receptor is important for the proliferation of pre-B lymphocytes and can also trigger proliferation of CD4-CD8- immature thymocytes, as well as mature T cells in the periphery. Mice lacking CD127 display profoundly impaired development of the B and T lymphoid cell lineages, but display no obvious non-lymphoid abnormalities.5 IL-7Rα is expressed on common lymphoid progenitors and early stages of B lineage development in the bone marrow, on the earliest thymocyte progenitors and CD4-CD8- double-negative and CD4+ and CD8+ singlepositive thymocytes, and on most peripheral T lymphocytes. Intestinal intraepithelial lymphocytes with low-density γδ TCR upregulate CD127 expression in response to IL-2, which may be secreted by neighboring αβ TCR-bearing T cells. Expression of CD127 in the bone marrow and spleen. C57BL/6 bone marrow leukocytes (Left panels) and splenocytes (Right panels) were stained with either biotinylated rat IgG2a, κ isotype control mAb R35- 95 (Cat. no. 553928, Top panels) or biotinylated B12-1 antibody (Bottom panels) and either FITC-conjugated RA3-6B2 anti-mouse CD45R/B220, Cat. no. 553087/553088, Left panels) or FITC- conjugated 145-2C11 mAb (anti-mouse CD3e, Cat. no. 553061/553062, Right panels), followed by Streptavidin-PE (Cat. no. 554061, all panels). Flow cytometry was performed on a FACScan .
BD Pharmingen™ Biotin Rat Anti-Mouse CD127 - Biotin - Clone B12-1 - Isotype Rat IgG2a, λ - Reactivity Ms - 0.5 mg
Aufreinigung
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Handhabung
The antibody was conjugated with biotin under optimum conditions, and unreacted biotin was removed.
Lagerung
4 °C
Informationen zur Lagerung
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
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