Human IL-18 BPa Antibody

Catalog #: MAB119
1 Citation Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
MAB119
MAB119-SP

All IL-18 BPa Antibodies

Product Details

Citations (1)

Supplemental Products

Reviews

Summary Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human IL-18 BPa Antibody Summary

Species Reactivity

Human

Specificity

Detects human IL-18 BPa in direct ELISAs and Western blots. In direct ELISAs and Western blots, does not cross-react with recombinant mouse (rm) IL‑18 BPc or rmIL-18 BPd.

Source

Monoclonal Mouse IgG₁ Clone # 136033

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Mouse myeloma cell line NS0-derived recombinant human IL-18 BPa

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

Western Blot

1 µg/mL

Recombinant Human IL‑18 BPa Fc Chimera (Catalog # 119-BP)

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.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile 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-18 BPa

Interleukin 18 binding protein (IL-18 BP) is a secreted glycoprotein, which functions as an IL-18 antagonist by binding to IL-18 and blocking its biological activity. IL‑18 BP bears no amino acid sequence homology to the membrane-associated IL-18 and IL-1 receptor proteins. The gene for human IL-18 BP has been localized to chromosome 11q13. It encodes for at least four isoforms by alternative splicing. The IL-18 BP isoforms a and c each contain one immunoglobulin (Ig)-like C2-type domain while isoforms b and d lack a complete Ig domain. The complete Ig domain has been shown to be essential to the binding and neutralizing properties of the binding proteins. Two isoforms of mouse IL18 BP (c and d) containing the complete Ig domain have also been isolated and shown to neutralize IL-18 bioactivity. Human and mouse IL-18 BPs share approximately 61% amino acid sequence identity. Several poxviruses also encode proteins with sequence similarity to the human and mouse IL-18 BP. Viral IL-18 BPs have been shown to bind and inhibit IL-18 responses and may be involved in modulating host immune responses. The expression of IL-18 BP is markedly upregulated by IFN-gamma, suggesting that IL-18 activity is modulated by a negative feedback mechanism mediated by IL-18 BP.

References

Mühl, H. et al. (2000) Biochem. Biophys. Res. Commun. 267:960.
Kim, S-H. et al. (2000) Proc. Nat. Acad. Sci. USA 97:1190.
Calderara, S. et al. (2001) Virology 279:22.

Long Name

Interleukin 18 Binding Protein Isoform a

Entrez Gene IDs

10068 (Human); 84388 (Rat); 107126419 (Cynomolgus Monkey)

Alternate Names

IL18 BPa; IL-18 BPa; IL18BP; IL-18BP; IL18BPa; interleukin 18 binding protein; interleukin-18-binding protein; MC51L-53L-54L homolog gene product; tadekinig-alfa

Product Datasheets

Product Datasheet

COA

SDS

Related Research Areas

IL-1 Family

Citation for Human IL-18 BPa 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.

1 Citation: Showing 1 - 1