IL-37/IL-1F7 Antibody (899826)

Human peripheral blood mononuclear cell (PBMC) monocytes either (A) untreated or (B) treated with 250 ng/mL LPS and 3 μM monensin overnight were stained with Mouse Anti-Human IL-37/IL-1F7 Monoclonal Antibody (Catalog # MAB19751, filled histogram) or isotype control antibody (Catalog # MAB0041, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). To facilitate intracellular staining, cells were fixed with paraformaldehyde and permeabilized with saponin.

• Reactivity: Hu
• Applications: Flow, CyTOF-ready
• Clone: 899826
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Unconjugated

IL-37/IL-1F7 Antibody (899826) Summary

• Immunogen: E. coli-derived recombinant human IL-37/IL-1F7
  Lys53-Val206
  Accession # Q9NZH6
• Specificity: Detects human IL-37/IL-1F7 in ELISAs.
• Source: N/A
• Isotype: IgG2b
• Clonality: Monoclonal
• Host: Mouse
• Gene: IL37
• Purity Statement: Protein A or G purified from hybridoma culture supernatant

Applications/Dilutions

• Dilutions:
  • CyTOF-ready
  • Flow Cytometry 0.25 ug/10^6 cells

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: 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-37/IL-1F7 Antibody (899826)

• FIL1 zeta
• FIL1
• FIL1(ZETA)
• FIL1ZFIL1 zeta
• IL-1F7
• IL-1F7IL-1 zeta
• IL1H4IL1F7 (canonical product IL-1F7b)
• IL-1H4IL-1F7b (IL-1H4, IL-1H, IL-1RP1)
• IL-1RP1IL-1X protein
• IL1RP1interleukin 1 family member 7
• IL-1X
• IL37
• IL-37
• interleukin 1 family, member 7 (zeta)
• interleukin 1, zeta
• interleukin-1 family member 7
• Interleukin-1 homolog 4
• interleukin-1 superfamily z
• Interleukin-1 zeta
• Interleukin-1-related protein

Background

Human Interleukin 1 Family Member 7 (IL-1F7), also named IL-37, FIL-1Z, IL-1H4, and IL-1RP1, belongs to the IL-1 cytokine family.  With the exception of IL-18 that maps to human chromosome 11, all other IL-1 family members map to the same cluster on human chromosome 2. Five alternatively spliced transcripts that arise through alternate exon usage have been described. These transcripts encode five different IL-1F7 isoforms (IL-1F7a through e also referred to as isofoms 1 through 5) that have distinct expression profiles. Polymorphism in the protein sequence of IL-1F7 isoforms also exists. Like IL-1 alpha , IL-1 beta and IL-18, all of the IL-1F7 variants lack a typical signal peptide. The longest IL-1F7 transcript, referred to as IL-1F7b or IL-1F7 isoform 1, encodes a 218 amino acid (aa) residues proprotein containing a 45 aa propeptide, which is removed by caspase-1 to generate the 173 aa mature segment. Mature IL-1F7b and other IL-1F7 variants lack potential N-linked glycosylation sites. IL-1F7 shares approximately 21%, 24%, and 30% aa sequence identity with mature IL-1 alpha , IL-1 beta and IL-1ra, respectively. Mouse IL-1F7 has not been reported, but human IL-1F7 is active on mouse cells. IL-1F7b binds to IL-18 R alpha with low affinity but does not exert any IL-18 agonistic or antagonistic effects. IL-1F7b also binds to the IL-18BP to enhance the antagonistic effects of IL-18BP. It has been proposed that IL-1F7b form a trimeric complex with IL-18BP and IL-18 R beta . This complex blocks IL-18 activity by sequestering the signal transducing subunit and preventing it from participating in IL-18 signaling (1‑8).

1. Smith, D.E. et al. (2000) J. Biol. Chem. 275:1169.
2. Kumar S. et al. (2000) J. Biol. Chem. 275:10308.
3. Busfield S.J. et al. (2000) Genomics 66:213.
4. Kumar S. et al. (2002) Cytokine 18:61.
5. Bufler, P. et al. (2002) Proc. Natl. Acad. Sci. USA 99:13723.
6. Gao, W. et al. (2003) J. Immunol. 170:1077.
7. Pan, G. et al. (2001) Cytokine 13:1.
8. Sims, J.E. et al. (2001) Trends Immunol. 22:533.

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

• Gene Symbol: IL37
• Uniprot:
  • Q9NZH6(Human)