IL18 active protein

Recombinant Human IL18

Cat. Num. AAA4159675

• Gene Names: IL18; IGIF; IL-18; IL-1g; IL1F4
• Purity: >95% as determined by SDS-PAGE
• Synonyms: IL18; Recombinant Human IL18; IL-18; Interferon gamma-inducing factor; IFN-gamma-inducing factor; Interleukin-1 gamma; IL-1 gamma; Recombinant Human Interleukin-18 (IL18); IL18 active protein

• Host: E Coli
• Purity/Purification: >95% as determined by SDS-PAGE
• Form/Format: Lyophilized from 0.2 um filtered solution in Tris buffer with NaCl
• Sequence Length: 189

• Bioactivity: The ED(50) as determined by the dose-dependent proliferation of human PBMC co-stimulated with IL12 was found to be in the range of 5.0 ng/mL.
• Endotoxin Level: <1.0 EU/ug of recombinant protein as determined by the LAL method
• Reconstitution: A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
• Preparation and Storage: Upon reconstitution, this cytokine can be stored in working aliquots at 2-8 degree C for one month, or at-20 degree C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.

Testing Data

Testing Data

Related Product Information for IL18 active protein

Also known as interferon-gamma-inducing factor (IGIF) and IL-1gamma, IL18 is a cytokine that bears structural similarities with members of the IL-1 family of proteins. IL18 is natively synthesized as a proform that gets processed by caspase-1 to generate the bioactive form of IL18. IL18 is one of the pro-inflammatory cytokines that is expressed by a variety of immune and non-immune cells. The activities of IL18 appear to be species specific. An important function of IL18 is the regulation of functionally distinct subsets of T-helper cells required for cell mediated immune responses. IL18 functions as a growth and differentiation factor for Th1 cells and is known to up-regulate the FAS ligand mediated cytotoxic activity of murine natural killer cells. IL18 also partakes in a complex regulatory circuit involved in causing cell death by apoptosis.

NCBI and Uniprot Product Information

• NCBI GI #: 342349321
• NCBI GeneID: 3606
• NCBI Accession #: NP_001230140.1
• NCBI GenBank Nucleotide #: NP_001230140.1
• UniProt Accession #: Q14116
• Molecular Weight: 18.5 kDa
• 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: Interleukin
• 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