IL-34 Antibody (780310) [Unconjugated]

Recombinant Mouse IL‑34 induces proliferation in the M‑NFS‑60 mouse myelogenous leukemia lymphoblast cell line in the presence of in a dose-dependent manner (orange line), as measured by the Resazurin (Catalog # AR002). Under these conditions, proliferation elicited by IL‑34 is neutralized (green line) by increasing concen­trations of Rat Anti-Mouse IL‑34 Monoclonal Antibody (Catalog # MAB5195). The ND50 is typically 0.1-0.5 ug/mL.

• Reactivity: Mu
• Applications: B/N
• Clone: 780310
• Clonality: Monoclonal
• Host: Rat
• Conjugate: Unconjugated

IL-34 Antibody (780310) [Unconjugated] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant mouse IL-34
  Asn21-Pro235
  Accession # Q8R1R4
• Specificity: Detects mouse IL-34 in ELISAs. In direct ELISAs, no cross-reactivity with recombinant human IL-34 is observed.
• Source: N/A
• Isotype: IgG2a
• Clonality: Monoclonal
• Host: Rat
• Gene: Il34
• Purity Statement: Protein A or G purified from hybridoma culture supernatant
• Endotoxin Note: <0.10 EU per 1 μg of the antibody by the LAL method.

Applications/Dilutions

• Dilutions:
  • Neutralization 0.1-0.5 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. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
• Preservative: No Preservative
• Reconstitution Instructions: Sterile PBS to a final concentration of 0.5 mg/mL.

Notes

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

Alternate Names for IL-34 Antibody (780310) [Unconjugated]

• C16orf77
• IL34
• IL-34
• interleukin 34

Background

Interleukin 34 (IL-34; also known as uncharacterized protein C16orf77 homolog) is a 39 kDa, secreted cytokine that belongs to no known cytokine family (1). Mouse IL-34 is synthesized as a 235 amino acid (aa) precursor with a 20 aa signal sequence and a 215 aa mature chain that contains two potential sites for N-linked glycosylation. There are three isoforms for IL-34. Isoform 1 (Q8R1R4-1) is the recombinant mouse IL-34 described in this insert. Isoform 2 (Q8R1R4-2) has an 85 aa substitution for the final 101 aa in isoform 1, and isoform 3 (Q8R1R4-3) lacks Q81 in isoform 1. Mouse IL-34 shares 71% aa sequence identity with human IL‑34. IL‑34 is expressed in various tissues, including heart, brain, lung, liver, kidney, spleen, thymus, testes, ovary, small intestine, prostate, and colon, and it is most abundant in the spleen (1). The receptor for IL-34 is colony-stimulating factor 1 receptor (CSF‑1R) (1). IL-34 stimulates monocyte viability (1). In functional studies, IL-34, like CSF-1, the other ligand for CSF-1R, stimulated phosphorylation of extracellular signal-regulated kinase-1 and -2 (ERK1/2) in human monocytes (1). In addition, IL-34 promoted the formation of the colony-forming unit-macrophage (CFU-M), a macrophage progenitor, in human bone marrow cultures (1).

1. Lin, H. et al. (2008) Science 320:807.

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.

Publications for IL-34 Antibody (MAB5195)(1)

Publication using MAB5195

• Obst J, Simon E, Martin-Estebane M, Pipi E, Barkwill L, Gonzalez-Rivera I, Buchanan F, Prescott A, Faust D, Fox S, Brownlees J, Taylor D, Perry V, Nuthall H, Atkinson P, Karran E, Routledge C, Gomez-Nicola D Inhibition of IL-34 Unveils Tissue-Selectivity and Is Sufficient to Reduce Microglial Proliferation in a Model of Chronic Neurodegeneration. Front Immunol, 2020-10-08;11(0):579000. 2020-10-08 [PMID: 33162994] (Neutralization, Mouse)

Bioinformatics

• Gene Symbol: Il34
• Uniprot:
  • Q8R1R4()