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Activity Data (Figure. The binding activity of IL18 with CASP1.Interleukin-18 (IL18, also known as interferon-gamma inducing factor) is a proinflammatory cytokine that belongs to the IL-1 superfamily and is produced by macrophages and other cells. IL18 works by binding to the interleukin-18 receptor, and together with IL-12 it induces cell-mediated immunity following infection with microbial products like lipopolysaccharide (LPS). Besides, Caspase 1 (CASP1) has been identified as an interactor of IL18, thus a binding ELISA assay was conducted to detect the interaction of recombinant human IL18 and recombinant human CASP1. Briefly, IL18 were diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100uL were then transferred to CASP1-coated microtiter wells and incubated for 2h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-IL18 pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50uL stop solution to the wells and read at 450nm immediately. The binding activity of IL18 and CASP1 was shown in Figure 1, and this effect was in a dose dependent manner.)

Interleukin 18 (IL18) Active Protein | IL18 active protein

Active Interleukin 18 (IL18)

Gene Names
IL18; IGIF; IL-18; IL-1g; IL1F4
Applications
Cell Culture, Activity Assays
Purity
> 90%
Synonyms
Interleukin 18 (IL18); Active Interleukin 18 (IL18); IGIF; IL-1g; IL1F4; IL1-F4; Interferon-Gamma-Inducing Factor; Interleukin-1 Family Member 4; Iboctadekin; Interleukin-1 Gamma; IL18 active protein
Ordering
For Research Use Only!
Purity/Purification
> 90%
Form/Format
Freeze-Dried Powder; 20mM Tris, 150mM NaCl, pH8.0, Containing 1mM EDTA, 1mM DTT, 0.01% SKL, 5% Trehalose and Proclin300.
Sequence Positions
Tyr37~Asp193
Sequence Length
189
Applicable Applications for IL18 active protein
Cell Culture, Activity Assays
Species
Human
Tag
N-terminal His-Tag
Isoelectric Point
5.8
Subcellular Location
Secreted
Reconstitution
Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.
Preparation and Storage
Store at 2-8 degree C for one month. Aliquot and store at -80 degree C for 12 months. Avoid repeated freeze/thaw cycles.
The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37 degree C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

Activity Data

(Figure. The binding activity of IL18 with CASP1.Interleukin-18 (IL18, also known as interferon-gamma inducing factor) is a proinflammatory cytokine that belongs to the IL-1 superfamily and is produced by macrophages and other cells. IL18 works by binding to the interleukin-18 receptor, and together with IL-12 it induces cell-mediated immunity following infection with microbial products like lipopolysaccharide (LPS). Besides, Caspase 1 (CASP1) has been identified as an interactor of IL18, thus a binding ELISA assay was conducted to detect the interaction of recombinant human IL18 and recombinant human CASP1. Briefly, IL18 were diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100uL were then transferred to CASP1-coated microtiter wells and incubated for 2h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-IL18 pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50uL stop solution to the wells and read at 450nm immediately. The binding activity of IL18 and CASP1 was shown in Figure 1, and this effect was in a dose dependent manner.)

Activity Data (Figure. The binding activity of IL18 with CASP1.Interleukin-18 (IL18, also known as interferon-gamma inducing factor) is a proinflammatory cytokine that belongs to the IL-1 superfamily and is produced by macrophages and other cells. IL18 works by binding to the interleukin-18 receptor, and together with IL-12 it induces cell-mediated immunity following infection with microbial products like lipopolysaccharide (LPS). Besides, Caspase 1 (CASP1) has been identified as an interactor of IL18, thus a binding ELISA assay was conducted to detect the interaction of recombinant human IL18 and recombinant human CASP1. Briefly, IL18 were diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100uL were then transferred to CASP1-coated microtiter wells and incubated for 2h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-IL18 pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50uL stop solution to the wells and read at 450nm immediately. The binding activity of IL18 and CASP1 was shown in Figure 1, and this effect was in a dose dependent manner.)
Product Categories/Family for IL18 active protein

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
Predicted MW: 19.5kDa
Accurate MW: 18kDa
NCBI Official Full Name
interleukin-18 isoform 2
NCBI Official Synonym Full Names
interleukin 18
NCBI Official Symbol
IL18
NCBI Official Synonym Symbols
IGIF; IL-18; IL-1g; IL1F4
NCBI Protein Information
interleukin-18
UniProt Protein Name
Interleukin-18
Protein Family
UniProt Gene Name
IL18
UniProt Synonym Gene Names
IGIF; IL1F4; IL-18; IFN-gamma-inducing factor; IL-1 gamma
UniProt Entry Name
IL18_HUMAN

NCBI Description

The protein encoded by this gene is a proinflammatory cytokine that augments natural killer cell activity in spleen cells, and stimulates interferon gamma production in T-helper type I cells. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Aug 2011]

Uniprot Description

IL18: Augments natural killer cell activity in spleen cells and stimulates interferon gamma production in T-helper type I cells. Belongs to the IL-1 family.

Protein type: Cytokine

Chromosomal Location of Human Ortholog: 11q22.2-q22.3

Cellular Component: extracellular space; extracellular region; cytosol

Molecular Function: protein binding; cytokine activity

Biological Process: positive regulation of granulocyte macrophage colony-stimulating factor production; positive regulation of NK T cell proliferation; natural killer cell activation; positive regulation of NF-kappaB import into nucleus; positive regulation of activated T cell proliferation; chemokine biosynthetic process; cell-cell signaling; lipopolysaccharide-mediated signaling pathway; granulocyte macrophage colony-stimulating factor biosynthetic process; angiogenesis; inflammatory response; regulation of cell adhesion; positive regulation of interleukin-17 production; positive regulation of natural killer cell proliferation; T-helper 1 type immune response; interleukin-2 biosynthetic process; T-helper 2 type immune response; MAPKKK cascade; interleukin-13 biosynthetic process; sleep; positive regulation of tissue remodeling; positive regulation of interferon-gamma production; interferon-gamma biosynthetic process; immune response; negative regulation of myoblast differentiation; positive regulation of inflammatory response

Research Articles on IL18

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Product Notes

The IL18 il18 (Catalog #AAA2105068) is an Active Protein and is intended for research purposes only. The product is available for immediate purchase. The immunogen sequence is Tyr37~Asp193. AAA Biotech's Interleukin 18 (IL18) can be used in a range of immunoassay formats including, but not limited to, Cell Culture, Activity Assays. Researchers should empirically determine the suitability of the IL18 il18 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "Interleukin 18 (IL18), Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.

Precautions

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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