Human IL-7R alpha/CD127 PE-conjugated Antibody

Catalog # Availability Size / Price Qty
FAB306P-100
FAB306P-025

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Detection of IL‑7 R alpha /CD127 in Human Blood Lymphocytes by Flow Cytometry.
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Citations (2)
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Human IL-7R alpha/CD127 PE-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human IL-7 R alpha in Western blots. In Western blots, approximately 5% cross-reactivity was observed with recombinant human (rh) IL‑10 R, rhIL‑2 R beta, rhIL‑5 R alpha, and rhIL‑6 R.
Source
Monoclonal Mouse IgG1 Clone # 40131
Purification
Protein A or G purified from ascites
Immunogen
Mouse myeloma cell line NS0-derived recombinant human IL-7 R alpha
Extracellular domain
Formulation
Supplied in a saline solution containing BSA and Sodium Azide.
Label
Phycoerythrin (Excitation= 488 nm, Emission= 565-605 nm)

Applications

Recommended Concentration
Sample
Flow Cytometry
10 µL/106 cells
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry Detection of IL-7 Ra/CD127 antibody in Human Blood Lymphocytes antibody by Flow Cytometry. View Larger

Detection of IL‑7 R alpha /CD127 in Human Blood Lymphocytes by Flow Cytometry. Human peripheral blood lymphocytes were stained with Mouse Anti-Human CD3e APC-conjugated Monoclonal Antibody (Catalog # FAB100A) and either (A) Mouse Anti-Human IL-7 Ra/CD127 PE-conjugated Monoclonal Antibody (Catalog # FAB306P) or (B) Mouse IgG1Phycoerythrin Isotype Control (Catalog # IC002P). View our protocol for Staining Membrane-associated Proteins.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: IL-7R alpha/CD127

Interleukin 7 Receptor alpha (IL-7 R alpha ), also known as CD127, is a 75 kDa hematopoietin receptor superfamily member that plays an important role in lymphocyte differentiation, proliferation, and survival (1, 2). Mature human IL-7 R alpha consists of a 219 amino acid (aa) extracellular domain (ECD) with one fibronectin type-III domain and a WSXWS motif, a 25 aa transmembrane segment, and a 195 aa cytoplasmic domain (3). Alternate splicing of human IL-7 R alpha generates a secreted soluble form of the receptor (3). Within the ECD, human IL‑7 R alpha shares 67% aa sequence identity with mouse and rat IL-7 R alpha. IL-7 R alpha associates with the common gamma chain ( gamma c) to form the functional high affinity IL-7 receptor complex (4). The gamma c is also a subunit of the receptors for IL-2, -4, -9, -15, and -21. Human and mouse IL‑7 show cross-species activity through the IL-7 receptor (3, 5). IL-7 R alpha is expressed on double negative (CD4-/CD8-) and CD4+ or CD8+ single positive T cells as well as on CD8+ memory T cells and their precursors (6, 7). It is expressed early in B cell development, prior to the appearance of surface IgM (6). In mouse, IL-7 activation of IL-7 R alpha is critical for both T cell and B cell lineage development (8). In human, by contrast, it is required for T cell but not for B cell development (9). IL-7 induces the downregulation and shedding of cell surface IL‑7 R alpha (10). IL-7 R alpha additionally associates with TSLP R to form the functional receptor for thymic stromal lymphopoietin (11, 12). TSLP indirectly regulates T cell development by modulating dendritic cell activation (2, 13). Knockout of TSLP R in mice provokes minor changes in B and T cell development compared to those seen with IL-7 R alpha deletion (8, 14). The complexity of IL-7 R alpha biology is suggested by the competition between IL-7 and TSLP for receptor binding and by the ability of IL-7 R alpha to form functional complexes with SCF R and HGF R (11, 12, 15, 16).

References
  1. Mazzucchelli, R. and S.K. Durum (2007) Nat. Rev. Immunol. 7:144.
  2. Liu, Y-J. et al. (2007) Annu. Rev. Immunol. 25:193.
  3. Goodwin, R.G. et al. (1990) Cell 60:941.
  4. Noguchi, M. et al. (1993) Science 262:1877.
  5. Barata, J.T. et al. (2006) Exp. Hematol. 34:1133.
  6. Sudo, T. et al. (1993) Proc. Natl. Acad. Sci. USA 90:9125.
  7. Kaech, S.M. et al. (2003) Nat. Immunol. 4:1191.
  8. Peschon, J.J. et al. (1994) J. Exp. Med. 180:1955.
  9. Prieyl, J.A. and T.W. LeBien (1996) Proc. Natl. Acad. Sci. USA 93:10348.
  10. Vranjkovic, A. et al. (2007) Int. Immunol. 19:1329.
  11. Park, L.S. et al. (2000) J. Exp. Med. 192:659.
  12. Pandey, A. et al. (2000) Nat. Immunol. 1:59.
  13. Reche, P.A. et al. (2001) J. Immunol. 167:336.
  14. Al-Shami, A. et al. (2004) J. Exp. Med. 200:159.
  15. Jahn, T. et al. (2007) Blood 110:1840.
  16. Lai, L. et al. (2006) Blood 107:1776.
Long Name
Interleukin 7 Receptor alpha
Entrez Gene IDs
3575 (Human); 16197 (Mouse); 294797 (Rat); 102143679 (Cynomolgus Monkey)
Alternate Names
CD127 antigen; CD127; CD127ILRA; CDW127; IL-7 R alpha; IL-7 receptor subunit alpha; IL7R alpha; IL-7R alpha; IL-7R subunit alpha; IL7R; IL7RA; IL-7Ra; IL-7R-alpha; interleukin 7 receptor alpha chain; interleukin 7 receptor isoform H5-6; interleukin 7 receptor; interleukin-7 receptor subunit alpha

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Citations for Human IL-7R alpha/CD127 PE-conjugated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Identification of human NK17/NK1 cells.
    Authors: Pandya AD, Al-Jaderi Z, Hoglund RA, Holmoy T, Harbo HF, Norgauer J, Maghazachi AA
    PLoS ONE, 2011-10-21;6(10):e26780.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Potential role for IL-7 in Fas-mediated T cell apoptosis during HIV infection.
    Authors: Fluur C, De Milito A, Fry TJ, Vivar N, Eidsmo L, Atlas A, Federici C, Matarrese P, Logozzi M, Rajnavolgyi E, Mackall CL, Fais S, Chiodi F, Rethi B
    J. Immunol., 2007-04-15;178(8):5340-50.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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Human IL-7 R alpha /CD127 PE-conjugated Antibody
By Anonymous on 07/07/2017
Application: Flow Sample Tested: Peripheral blood cells Species: Human