IL‑3 R alpha /CD123 was detect-ed in immersion fixed human peripheral blood lymphocytes using 2 µg/mL Mouse Anti-Human IL‑3 R alpha /CD123 Monoclonal Antibody (Catalog # MAB301) for 3 hours at room temperature. ...read more
IL-3 Ra/CD123 was detected in immersion fixed paraffin-embedded sections of human tonsil using 15 µg/mL Mouse Anti-Human IL-3 Ra/CD123 Monoclonal Antibody (Catalog # MAB301) overnight at 4 °C. Tissue was stained with ...read more
Recombinant Human IL-3 (203-IL) stimulates proliferation in the TF-1 human erythroleukemic cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IL-3 (0.5 ng/mL) is neutralized ...read more
THP-1 cells were stained with Mouse Anti-Human IL-3R alpha/CD123 Monoclonal Antibody (Catalog # MAB301, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by PE-conjugated ...read more
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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for IL-3R alpha/CD123 Antibody (32703) [Unconjugated]
CD123 antigen
CD123
hIL3Ra
hIL-3Ra
IL-3 R alpha
IL-3 receptor subunit alpha
IL3R alpha
IL-3R alpha
IL-3R subunit alpha
IL3R
IL3RA
IL-3Ra
IL-3R-alpha
IL3RAY
IL3RX
IL3RY
interleukin 3 receptor, alpha (low affinity)
interleukin-3 receptor subunit alpha
MGC34174
Background
IL-3 is a pleiotropic cytokine that can stimulate proliferation and differentiation of pluripotent hematopoietic stem cells as well as various lineage committed progenitors (1, 2). IL-3 exerts its activity through binding to a specific cell surface receptor known as IL-3 R. IL-3 R is a heterodimeric structure composed of a 70 kDa IL-3 R alpha subunit (CD123) and a 120-140 kDa IL-3 R beta subunit (CD131) (3, 4). IL-3 R alpha binds IL-3 with relatively low affinity. In the presence of IL-3 R beta , however, IL-3 R alpha has a much higher affinity for IL-3. It is not clear how signal transduction occurs following IL-3 binding. The IL-3 R alpha chain has a very short intracellular domain while the IL‑3 R beta chain has a very large cytoplasmic domain. The IL‑3 R beta chain is also shared by the receptors for IL-5 and GM-CSF. Cells known to express IL-3 receptors include hematopoietic progenitors, epithelial cells, double negative T cells, mast cells, basophils and blood monocytes (5).
Moore, M.A.S. et al. (1991) Blood 72:944.
Warren, D.J. et al. (1988) J. Immunol. 140:94.
Plant M. et al. (1989) Nature 339:150.
Budel, L.M. et al. (1990) Blood 75:1439.
Schrader, J.W. et al. (1988) In Interleukin-3: The Panspecific hemopoietin (ed. J.W. Schrader), Academic Press, San Diego, CA.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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