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Key Product Details

Species Reactivity

Validated:

Human, Mouse

Cited:

Human, Mouse, Primate - Papio hamadryas (Hamadryas Baboon)

Applications

Validated:

Western Blot, Intracellular Staining by Flow Cytometry, CyTOF-ready

Cited:

Western Blot, Neutralization, Flow Cytometry, Immunoprecipitation, Bioassay, ELISA Development

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # 27537

Product Specifications

Immunogen

S. frugiperda insect ovarian cell line Sf 21-derived recombinant human IL‑12/IL-35 p35
Arg23-Ser219
Accession # P29459

Specificity

Detects human IL‑12/IL-35 p35 in direct ELISAs and Western blots. Detects the p35 subunit either as part of a p40/p35 heterodimer or as a free subunit after reduction of the heterodimer. This antibody does not recognize IL-12 p40 homodimers but shows strong cross-reactivity with the p35 subunits from porcine and mouse systems.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for Human/Mouse IL-12/IL-35 p35 Antibody

Detection of IL-12/IL-35 p35 in PBMC's + LPS (1ug/mL) 24 hrs vs untreated PBMC's by Flow Cytometry

PBMC's + LPS (1ug/mL;24 hrs) and monensin (3 hrs) (A) vs untreated PBMC's (B) were stained with Mouse Anti-Human/Mouse IL-12/IL-35 p35 Monoclonal Antibody (Catalog # mab1570) and Mouse Anti-Human CD14 PE-conjugated Monoclonal Antibody (Catalog # FAB3832P) followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.
Detection of IL-12/IL-35 p35 by Immunohistochemistry

Detection of IL-12/IL-35 p35 by Immunohistochemistry

IL-35 is highly expressed in retinal rod and cone photoreceptors. (A) qPCR analysis of p35, ebi3 IL-10 mRNA transcripts in the retina and spleen of WT mice. (B) Western blot analysis of whole cell extracts prepared from sorted CD4+ T cells, CD19+ B cells, dendritic cells (CD11c) and monocytes (Ly6C). Antibodies used were specific to mouse p35 or beta-actin. (C) Immunohistochemistry (IHC) analyses of frozen eye sections were performed with or without primary mouse IL-12p35 antibodies and goat anti-mouse (fab’2) secondary antibody. Slides were then stained with a DAB kit and counter-stained with methyl blue. IL-12p35-expressing cells, dark brown; microglia, white arrows; photoreceptor layers, red arrows. (D,E) Detection of IL-12p35-expressing cells by immunohistochemistry and confocal microscopy. Paraffin-fixed whole eye sections were subjected to antigen-retrieval, blocked in mouse blocking solution, incubated without or with primary rabbit IL-12p35 antibody and then goat anti-rabbit conjugated with AF647 antibody. Far-red magenta color indicates IL-12p35 expression; red arrow, photoreceptor layers; white arrow, microglial cells. GC, ganglion cell layer; IPL, inner plexiform layer; INL, inner nuclear layer; OPL outer plexiform layer, ONL, outer nuclear layer; IS, inner section; OS, outer segment; RPE/choroid, retinal pigmented epithelial and choroid. Data represent at least 3 independent experiments. *** p < 0.001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/35897732), licensed under a CC-BY license. Not internally tested by R&D Systems.
Detection of IL-12/IL-35 p35 by Immunohistochemistry

Detection of IL-12/IL-35 p35 by Immunohistochemistry

IL-35 is highly expressed in retinal rod and cone photoreceptors. (A) qPCR analysis of p35, ebi3 IL-10 mRNA transcripts in the retina and spleen of WT mice. (B) Western blot analysis of whole cell extracts prepared from sorted CD4+ T cells, CD19+ B cells, dendritic cells (CD11c) and monocytes (Ly6C). Antibodies used were specific to mouse p35 or beta-actin. (C) Immunohistochemistry (IHC) analyses of frozen eye sections were performed with or without primary mouse IL-12p35 antibodies and goat anti-mouse (fab’2) secondary antibody. Slides were then stained with a DAB kit and counter-stained with methyl blue. IL-12p35-expressing cells, dark brown; microglia, white arrows; photoreceptor layers, red arrows. (D,E) Detection of IL-12p35-expressing cells by immunohistochemistry and confocal microscopy. Paraffin-fixed whole eye sections were subjected to antigen-retrieval, blocked in mouse blocking solution, incubated without or with primary rabbit IL-12p35 antibody and then goat anti-rabbit conjugated with AF647 antibody. Far-red magenta color indicates IL-12p35 expression; red arrow, photoreceptor layers; white arrow, microglial cells. GC, ganglion cell layer; IPL, inner plexiform layer; INL, inner nuclear layer; OPL outer plexiform layer, ONL, outer nuclear layer; IS, inner section; OS, outer segment; RPE/choroid, retinal pigmented epithelial and choroid. Data represent at least 3 independent experiments. *** p < 0.001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/35897732), licensed under a CC-BY license. Not internally tested by R&D Systems.

Applications for Human/Mouse IL-12/IL-35 p35 Antibody

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Intracellular Staining by Flow Cytometry

0.25 µg/106 cells
Sample: Human peripheral blood mononuclear cells or mouse splenocytes treated with LPS, fixed with paraformaldehyde, and permeabilized with saponin

Western Blot

1 µg/mL
Sample: Recombinant Human IL-12 (Catalog # 219-IL)

Reviewed Applications

Read 1 review rated 4 using MAB1570 in the following applications:

Formulation, Preparation, and Storage

Purification

Protein A or G purified from ascites

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Reconstitution Buffer Available:
Size / Price
Qty
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Formulation

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.

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: IL-12/IL-35 p35

Interleukin 12 (IL-12) and interleukin 35 (IL-35) are heterodimeric cytokines composed of alpha and beta chains. IL-12 is composed of p35 and p40 subunits, while IL-35 is comprised of p35 paired with EBI-3 (1). In mice, IL-35 is produced by FoxP3+ regulatory T cells and may function as an inhibitory cytokine to suppress T cell proliferation (2). Human FoxP3+ Tregs do not constitutively express IL-35 (3), but expression may be induced by activated dendritic cells (4).

References

  1. Collison, L.W. and D.A.A. Vignali (2008) Immunol. Rev. 226:248.
  2. Collison, L.W. et al. (2007) Nature 450:566.
  3. Bardel, E. et al. (2008) J. Immunol. 181:6898.
  4. Seyerl, M. et al.(2010) Eur. J. Immunol. 40:321.

Long Name

Interleukin 12 p35

Alternate Names

IL-12A, IL35p35

Entrez Gene IDs

3592 (Human); 16159 (Mouse); 84405 (Rat)

Gene Symbol

IL12A

UniProt

Additional IL-12/IL-35 p35 Products

Product Documents for Human/Mouse IL-12/IL-35 p35 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human/Mouse IL-12/IL-35 p35 Antibody

For research use only

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