Human CD25/IL-2R alpha Antibody

Catalog # Availability Size / Price Qty
MAB1020-SP Ships in 5-7 Days25 ug / $149
MAB1020 In Stock500 ug / $589

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IL-2 binding to Human CD25/IL-2R alpha-transfected HEK293 Human Cell Line is Blocked by Human CD25/IL-2R alpha Antibody.
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Citations (5)
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Human CD25/IL-2R alpha Antibody Summary

Species Reactivity
Human
Specificity
Detects human CD25/IL-2 R alpha in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human (rh) IL‑2 R gamma or rhIL‑15 R alpha is observed.
Source
Monoclonal Mouse IgG2A Clone # 24212
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
S. frugiperda insect ovarian cell line Sf 21-derived recombinant human CD25/IL-2 R alpha
Glu22-Cys213
Accession # P01589
Formulation
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Human CD25/IL‑2 R alpha Fc Chimera (Catalog # 1020-RL)
Flow Cytometry
0.25 µg/106 cells
Human Treg cells (PBMC treated overnight with anti-human CD3 (10 μg/mL; Catalog # MAB100), anti-human CD28 (5 μg/mL; Catalog # MAB342), TGF-beta (10 ng/mL; Catalog # 100-B), and rhIL-2 (20 ng/mL; Catalog # 202-IL).
Blockade of Receptor-ligand Interaction
0.5 µg/106 cells
See below
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 

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

Blockade of Receptor-ligand Interaction IL-2 binding to Human CD25/IL-2R alpha-transfected HEK293 Human Cell Line is Blocked by Human CD25/IL-2R alpha Antibody. View Larger

IL-2 binding to Human CD25/IL-2R alpha-transfected HEK293 Human Cell Line is Blocked by Human CD25/IL-2R alpha Antibody. In a functional flow cytometry test, Recombinant Human IL-2 Biotinylated protein (Catalog # BT202, 500 ng/mL) binds to HEK293 human embryonic kidney cell line transfected with recombinant human CD25/IL-2R alpha (black dotted line). Binding is completely blocked (orange histogram) by 0.5 µg/mL of Mouse Anti-Human CD25/IL-2R alpha Monoclonal Antibody (Catalog # MAB1020). Mouse IgG2A Isotype Control (Catalog # MAB003) at 0.5 µg/mL was used as a control (blue line). Ligand binding was detected by staining cells with APC-conjugated Streptavidin (Catalog # F0050).

Reconstitution Calculator

Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
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: CD25/IL-2R alpha

IL-2 R alpha is a type I transmembrane protein that associates with IL-2 R beta and the common gamma chain to form a high affinity heterotrimeric receptor complex for IL-2. A soluble form of IL-2 R alpha has been detected in serum.

Long Name
Interleukin 2 Receptor alpha
Entrez Gene IDs
3559 (Human); 16184 (Mouse); 25704 (Rat); 403870 (Canine); 102123605 (Cynomolgus Monkey)
Alternate Names
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

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Citations for Human CD25/IL-2R alpha 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.

5 Citations: Showing 1 - 5
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  1. Ex vivo-expanded human CD19+TIM-1+ regulatory B cells suppress immune responses in vivo and are dependent upon the TIM-1/STAT3 axis
    Authors: S Shankar, J Stolp, SC Juvet, J Beckett, PS Macklin, F Issa, J Hester, KJ Wood
    Nature Communications, 2022-06-03;13(1):3121.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  2. E-cadherin phosphorylation occurs during its biosynthesis to promote its cell surface stability and adhesion.
    Authors: McEwen A, Maher M, Mo R, Gottardi C
    Mol Biol Cell, 2014-06-25;25(16):2365-74.
    Species: Canine
    Sample Types: Whole Cells
    Applications: ICC
  3. A novel human CD4+ T-cell inducer subset with potent immunostimulatory properties.
    Authors: Ndhlovu LC, Leal FE, Eccles-James IG, Jha AR, Lanteri M, Norris PJ, Barbour JD, Wachter DJ, Andersson J, Tasken K, Torheim EA, Aandahl EM, Kallas EG, Nixon DF
    Eur. J. Immunol., 2010-01-01;40(1):134-41.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  4. Human intestinal intraepithelial lymphocytes keep TNF alpha levels low by cell uptake and feedback inhibition of transcription.
    Authors: Ebert EC, Mehta V
    Cell. Immunol., 2006-08-17;241(1):7-13.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  5. Functional characterization of EBV-encoded nuclear antigen 1-specific CD4+ helper and regulatory T cells elicited by in vitro peptide stimulation.
    Authors: Voo KS, Peng G, Guo Z, Fu T, Li Y, Frappier L, Wang RF
    Cancer Res., 2005-02-15;65(4):1577-86.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

FAQs

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Isotype Controls

Mouse IgG2A Isotype Control

Reconstitution Buffers

Secondary Antibodies

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