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Key Product Details

Species Reactivity

Human

Applications

Intracellular Staining by Flow Cytometry

Label

Alexa Fluor 405 (Excitation = 405 nm, Emission = 421 nm)

Antibody Source

Monoclonal Mouse IgG1 Clone # 74801

Product Specifications

Immunogen

E. coli-derived recombinant human IL‑18/IL‑1F4
Accession # Q14116

Specificity

Detects the pro region of human IL-18/IL-1F4 in direct ELISAs and Western blots. Does not cross‑react with recombinant human IL-18, recombinant mouse IL-18 or recombinant rat IL-18.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Applications for Human IL-18/IL-1F4 Propeptide Alexa Fluor® 405-conjugated Antibody

Application
Recommended Usage

Intracellular Staining by Flow Cytometry

0.25-1 µg/106 cells
Sample: Human peripheral blood mononuclear cells (PBMCs) treated with LPS were fixed with paraformaldehyde and permeabilized with saponin
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from ascites

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: IL-18/IL-1F4

Pro-IL-18 (pro-Interleukin 18; also pro-IGIF and pro-IL-1 gamma) is a 24 kDa member of the IL-1 family of molecules. It is widely expressed, being produced by keratinocytes, intestinal epithelium, T cells, macrophages and osteoblasts. Human Pro-IL-18 is 193 amino acids (aa) in length. Although mature IL-18 induces IFN-gamma secretion by NK and T cells, Pro-IL-18 appears to have little intrinsic activity. Generally, active IL-18 is considered to arise from caspase-1 cleavage of Pro-IL-18 between Asp36-Tyr37. This generates an 18 kDa mature C-terminal fragment, and a 4 kDa (predicted) N-terminal prosegment that runs at 6 kDa in SDS-PAGE. Other proteases are known to process Pro-IL-18. Caspase-3 cleavage after Asp68 generates an inactive 14 kDa mature segment, Merpin beta-subunit cleavage after Asn52 generates a marginally active 17 kDa mature segment, while parasite Cys protease cleavage after Val47 generates an inactive 17 kDa mature molecule. One splice variant shows a deletion of aa 27-30. Over aa 2-36, human Pro-IL-18 shares 63% aa identity with mouse Pro-IL-18.

Long Name

Interleukin 18

Alternate Names

IGIF, IL-1F4, IL-1g, IL18

Entrez Gene IDs

3606 (Human); 16173 (Mouse); 29197 (Rat); 397057 (Porcine); 574151 (Primate)

Gene Symbol

IL18

UniProt

Additional IL-18/IL-1F4 Products

Product Documents

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 IL-18/IL-1F4 Propeptide Alexa Fluor® 405-conjugated Antibody


This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

For research use only

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