Active Recombinant Human IL18, His tagged

• Cat.No.: IL18-490H
• Product Overview: Recombinant Human Interleukin-18/IL-18 is produced by our mammalian expression system in human cells. The target protein is expressed with sequence (Tyr37-Asp193) of Human IL-18 fused with a polyhistidine tag at the C-terminus.

Specification

• Species: Human
• Source: Human Cells
• Tag: His
• Protein Length: 37-193 a.a.
• Description: Interleukin-18 is a secreted protein and it belongs to the IL-1 family. IL-18 is a proinflammatory cytokine and produced by macrophages and other cells. This cytokine can induce the IFN-gamma production of T cells. The combination of this cytokine and IL12 has been shown to inhibit IL-4 dependent IgE and IgG1 production, and enhance IgG2a production of B cells. IL-18 binding protein (IL18BP) can specifically interact with this cytokine, and thus negatively regulate its biological activity. After stimulation with IL-18, natural killer (NK) cells and certain T cells release another important cytokine called interferon-γ (IFN-γ) or type II interferon that plays an important role in activating the macrophages or other cells.
• Form: Lyophilized from a 0.2 μM filtered solution of PBS,pH 7.4.
• Bio-activity: >1.0 x 10^4 U/mg
• Endotoxin: Less than 0.1 EU/μg.
• Purity: Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.
• Storage: Lyophilized protein should be stored at< -20°c,="" though="" stable="" at="" room="" temperature="" for="" 3="">Reconstituted protein solution can be stored at 4-7°C for 2-7 days.Aliquots of reconstituted samples are stable at< -20°c="" for="" 5="">
• Reconstitution: Always centrifuge tubes before opening. Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100 μg/ml.Dissolve the lyophilized protein in 1X PBS.Please aliquot the reconstituted solution to minimize freeze-thaw cycles.

Gene Information

• Gene Name: IL18 interleukin 18 (interferon-gamma-inducing factor) [ Homo sapiens ]
• Official Symbol: IL18
• Synonyms: IL18; interleukin 18 (interferon-gamma-inducing factor); interleukin-18; IGIF; IL 1g; IL 18; IL1F4; IL-1 gamma; iboctadekin; interleukin-1 gamma; IFN-gamma-inducing factor; IL-18; IL-1g; MGC12320
• Gene ID: 3606
• mRNA Refseq: NM_001243211
• Protein Refseq: NP_001230140
• MIM: 600953
• UniProt ID: Q14116
• Chromosome Location: 11q22.2-q22.3
• Pathway: African trypanosomiasis, organism-specific biosystem; African trypanosomiasis, conserved biosystem; Cellular roles of Anthrax toxin, organism-specific biosystem; Cytokine Signaling in Immune system, organism-specific biosystem; Cytokine-cytokine receptor interaction, organism-specific biosystem; Cytokine-cytokine receptor interaction, conserved biosystem; Cytosolic DNA-sensing pathway, organism-specific biosystem
• Function: cytokine activity; cytokine activity

Q&As

What are the difference between IL18-01HG, IL18-153HG and IL18-500H. (sequence, biological activity, QC, or what do you propose to buy)

IL18-01HG: Sequence: a.a.37-193 Endotoxin: <20 EU/mg Bio-activity: >5.0 x 10^4 IU/mg QC: Activity test, SDS-PAGE, LAL, SEC-HPLC IL18-153HG: Protein length: Tyr37-Asp193 AA Sequence: YFGKLESKLS VIRNLNDQVL FIDQGNRPLF EDMTDSDCRD NAPRTIFIISMYKDSQPRGM AVTISVKCEK ISTLSCENKI ISFKEMNPPD NIKDTKSDIIFFQRSVPGHD NKMQFESSSY EGYFLACEKE RDLFKLILKK EDELGDRSIMFTVQNEDVD Bio-activity: 1.0*10^6IU Measured by its ability to induce IFN-gamma secretion by KG‐1 human acute myelogenous leukemia cells in the presence of TNF-alpha. QC: Activity test, SDS-PAGE, LAL IL18-500H Recombinant Human IL18 will be custom produced upon order. All the sequence, purity, activity, and QC procedures will be optional and decided by our customer.