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SDS-Page (Recombinant Human IL-18 Protein was determined by SDS-PAGE with Coomassie Blue, showing a band at 18 kDa.)

IL-18 active protein

Recombinant Human IL-18 Protein

Gene Names
IL18; IGIF; IL-18; IL-1g; IL1F4
Purity
>95% by SDS-PAGE.
Synonyms
IL-18; Recombinant Human IL-18 Protein; IGIF; IL-1g; IL1F4; IL-18 active protein
Ordering
For Research Use Only!
Host
E Coli
Purity/Purification
>95% by SDS-PAGE.
Form/Format
Lyophilized from a 0.22 um filtered solution of PBS, pH 7.4.
Sequence
YFGKLESKLSVIRNLNDQVLFIDQGNRPLFEDMTDSDCRDNAPRTIFIISMYKDSQPRGMAVTISVKCEKISTLSCENKIISFKEMNPPDNIKDTKSDIIFFQRSVPGHDNKMQFESSSYEGYFLACEKERDLFKLILKKEDELGDRSIMFTVQNED
Sequence Length
189
Species
Human
Endotoxin
< 0.1 EU/ug of the protein by LAL method.
Biological Activity
Measured by its ability to induce IFN-gamma secretion by KG-1 human acute myelogenous leukemia cells in the presence of TNF-alpha. The ED50 for this effect is typically 15-75 ng/ml.
Reconstitution
Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water.
Tag
No tag
Preparation and Storage
Store the lyophilized protein at -20 degree C to -80 degree C for long term.
After reconstitution, the protein solution is stable at -20 degree C for 3 months, at 2-8 degree C for up to 1 week.

SDS-Page

(Recombinant Human IL-18 Protein was determined by SDS-PAGE with Coomassie Blue, showing a band at 18 kDa.)

SDS-Page (Recombinant Human IL-18 Protein was determined by SDS-PAGE with Coomassie Blue, showing a band at 18 kDa.)
Related Product Information for IL-18 active protein
Description: Recombinant Human IL-18 Protein is produced by E. coli expression system. The target protein is expressed with sequence (Tyr37-Asp193) of human IL-18 (Accession #NP_001553.1).

Background: Interleukin-18 (IL-18, 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. IL-18 activation is induced by infection or tissue damage and contributes to disease pathology in chronic inflammation. In the presence of IL-12 or IL-15, IL-18 enhances anti-viral Th1 immune responses by inducing IFN-gamma production and the cytolytic activity of CD8+ T cells and NK cells. In the absence of IL-12 or IL-15, however, IL-18 promotes production of the Th2 cytokines IL-4 and IL-13 by CD4+ T cells and basophils. In the presence of IL-1 beta or IL-23, IL-18 induces the antigen-independent production of IL-17 by gamma delta T cells and CD4+ T cells.IL-18 also promotes myeloid dendritic cell maturation and triggers neutrophil respiratory burst.In cancer, IL-18 exhibits diverse activities including enhancing anti-tumor immunity, inhibiting or promoting angiogenesis, and promoting tumor cell metastasis.
Product Categories/Family for IL-18 active protein

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
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
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 IL-18

Similar Products

Product Notes

The IL-18 il18 (Catalog #AAA9139609) is an Active Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. The amino acid sequence is listed below: YFGKLESKLS VIRNLNDQVL FIDQGNRPLF EDMTDSDCRD NAPRTIFIIS MYKDSQPRGM AVTISVKCEK ISTLSCENKI ISFKEMNPPD NIKDTKSDII FFQRSVPGHD NKMQFESSSY EGYFLACEKE RDLFKLILKK EDELGDRSIM FTVQNED. It is sometimes possible for the material contained within the vial of "IL-18, 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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