CD25/IL-2R alpha Antibody (2604A) [Unconjugated]

Human PBMCs were treated with Recombinant Human IL-2 (202-IL,20 ng/mL) and TGF-beta (100-B,10 ng/mL) for 24 hours, then stained with (A) Rabbit anti-Human CD25/IL-2 Ra Monoclonal Antibody (Catalog # MAB10203) or (B) Rabbit IgG control antibody (MAB1050), followed by PE-conjugated Anti-Rabbit IgG Secondary Antibody (F0110) and Mouse anti-Human CD3 APC-conjugated Monoclonal Antiobdy (FAB100A). View our protocol for Staining Membrane-associated Proteins.

In a functional flow cytometry test, Recombinant Human IL-2 Biotinylated protein (BT202, 100 ng/mL) binds to HEK293 human embryonic kidney cell line transfected with recombinant human CD25/IL-2R alpha. (A) Binding is completely blocked by 2.5 µg/mL of Human Anti-Human CD25/IL-2R alpha Monoclonal Antibody (Catalog # MAB10203) but not by (B) Rabbit IgG Isotype Control (MAB1050) at the same concentration. Ligand binding was detected by staining cells with APC-conjugated Streptavidin (F0050).

• Reactivity: Hu
• Applications: ELISA, Flow
• Clone: 2604A
• Clonality: Monoclonal
• Host: Rabbit
• Conjugate: Unconjugated

CD25/IL-2R alpha Antibody (2604A) [Unconjugated] Summary

• Additional Information: Recombinant Monoclonal Antibody.
• Immunogen: NSO-derived recombinant Human CD25/ILR2a
  
  Glu22-Cys213
  Accession # P01589
• Specificity: Detects Human CD25/IL-2R alpha in direct Elisas.
• Source: N/A
• Isotype: IgG
• Clonality: Monoclonal
• Host: Rabbit
• Purity Statement: Protein A or G purified from cell culture supernatant

Applications/Dilutions

• Dilutions:
  • ELISA
  • Flow Cytometry 0.25 ug/mL

Packaging, Storage & Formulations

• 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.
• Buffer: Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
  *Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Reconstitution Instructions: Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for CD25/IL-2R alpha Antibody (2604A) [Unconjugated]

• CD25 antigen
• CD25
• IDDM10
• IL-2 R alpha
• IL-2 receptor subunit alpha
• IL2R alpha
• IL-2R subunit alpha
• IL2R
• IL2RA
• IL-2Ra
• IL-2-RA
• IL2-RA
• interleukin 2 receptor, alpha
• interleukin-2 receptor subunit alpha
• p55
• TAC antigen
• TCGFR

Background

Human IL-2 receptor alpha (IL-2R alpha ), also known as Tac antigen and as CD25, was initially identified as a 55 kDa membrane glycoprotein that is capable of binding IL-2. The IL-2R alpha cDNA encodes a 272 amino acid residue precursor Type I membrane protein with a 21 residue signal peptide, a 219 residue extracellular region, a 19 residue transmembrane region and a 13 residue cytoplasmic domain. IL-2R alpha lacks structural features characteristic of members of the cytokine receptor superfamily. By itself, IL-2R alpha binds IL-2 with low affinity. However, when IL-2R alpha is associated with the IL-2R beta and gamma chains, a high affinity heterotrimeric receptor complex that transduces IL 2 signals is formed.

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.

Bioinformatics

• Uniprot:
  • P01589()