Human IL-37/IL-1F7 Antibody

Catalog # Availability Size / Price Qty
MAB19751
MAB19751-SP
Detection of IL-37/IL-1F7 in Human PBMC Monocytes by Flow Cytometry.
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Human IL-37/IL-1F7 Antibody Summary

Species Reactivity
Human
Specificity
Detects human IL-37/IL-1F7 in ELISAs.
Source
Monoclonal Mouse IgG2B Clone # 899826
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
E. coli-derived recombinant human IL-37/IL-1F7
Lys53-Val206
Accession # Q9NZH6
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.

Applications

Recommended Concentration
Sample
Flow Cytometry
0.25 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

Flow Cytometry Detection of IL-37/IL-1F7 antibody in Human PBMC Monocytes antibody by Flow Cytometry. View Larger

Detection of IL-37/IL-1F7 in Human PBMC Monocytes by Flow Cytometry. 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.

Reconstitution Calculator

Reconstitution Calculator

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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
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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-37/IL-1F7

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).

References
  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.
Long Name
Interleukin 37
Entrez Gene IDs
27178 (Human)
Alternate Names
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

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