Recombinant Human IL18BP Protein, Fc-tagged

• Cat.No.: IL18BP-316H
• Product Overview: Recombinant human IL18BP protein with Fc tag was expressed in HEK293.

Specification

• Description: The protein encoded by this gene functions as an inhibitor of the proinflammatory cytokine, IL18. It binds IL18, prevents the binding of IL18 to its receptor, and thus inhibits IL18-induced IFN-gamma production, resulting in reduced T-helper type 1 immune responses. This protein is constitutively expressed and secreted in mononuclear cells. Elevated level of this protein is detected in the intestinal tissues of patients with Crohn's disease. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.
• Source: HEK293
• Species: Human
• Tag: Fc
• Form: Lyophilized
• Molecular Mass: 44.3 kDa
• Protein length: 194
• AA Sequence: MTMRHNWTPDLSPLWVLLLCAHVVT LLVRATPVSQTTTAATASVRSTKDP CPSQPPVFPAAKQCPALEVTWPEVE VPLNGTLSLSCVACSRFPNFSILYW LGNGSFIEHLPGRLWEGSTSRERGS TGTQLCKALVLEQLTPALHSTNFSC VLVDPEQVVQRHVVLAQLWAGLRAT LPPTQEALPSSHSSPQQQG
• Purity: > 98%
• Applications: WB; ELISA; FACS; FC
• Stability: This bioreagent is stable at 4 centigrade (short-term) and -70 centigrade(long-term). After reconstitution, sample may be stored at 4 centigrade for 2-7 days and below -18 centigrade for future use.
• Storage: At -20 centigrade.
• Concentration: 1 mg/mL
• Storage Buffer: PBS (pH 7.4-7.5). Sterile-filtered colorless solution.
• Reconstitution: Reconstitute in sterile distilled H2O to no less than 100 μg/mL; dilute reconstituted stock further in other aqueous solutions if needed. Please review COA for lot-specific instructions. Final measurements should be determined by the end-user for optimal performance.

Gene Information

• Gene Name: IL18BP interleukin 18 binding protein [ Homo sapiens (human) ]
• Official Symbol: IL18BP
• Synonyms: IL18BP; interleukin 18 binding protein; interleukin-18-binding protein; IL18BPa; MC51L 53L 54L homolog gene product; IL-18BP; tadekinig-alfa; MC51L-53L-54L homolog gene product
• Gene ID: 10068
• mRNA Refseq: NM_001039659
• Protein Refseq: NP_001034748
• MIM: 604113
• UniProt ID: O95998

Reviews

06/03/2022

Consistent binding affinity.

03/01/2020

High purity.

05/04/2018

Effective in neutralization assays.

Q&As

Can you elaborate on the experimental strategies used to assess the genetic polymorphisms and variations in IL18BP that might influence its function and disease susceptibility?

Genetic association studies, sequencing analyses, and functional investigations explore how genetic variations in IL18BP might influence disease susceptibility and outcomes.

How are animal models and in vivo imaging techniques used to understand the role of IL18BP in modulating IL18-mediated immune responses in whole organisms?

Knockout mice, transgenic models, and imaging techniques provide insights into IL18BP's impact on IL18-related immune responses in vivo.

What techniques are used to investigate the regulation of IL18BP expression by cytokines, growth factors, and other signaling molecules in different cell types?

Promoter studies, siRNA knockdown, and cytokine stimulation assays investigate IL18BP regulation at the transcriptional and post-transcriptional levels.

How are cell-based assays and functional studies employed to dissect the mechanisms through which IL18BP modulates IL18-induced immune responses?

Luciferase reporter assays, ELISAs, and functional cell assays probe how IL18BP modulates IL18-induced cytokine production and immune cell activation.

What experimental approaches are utilized to explore the potential allosteric effects of IL18BP on IL18 receptor complex formation and downstream signaling?

Biophysical techniques, site-directed mutagenesis, and receptor binding assays reveal potential allosteric effects on IL18 signaling.

How do researchers experimentally characterize the binding affinity and kinetics between IL18BP and IL18, considering their critical role in regulating IL18-mediated inflammation?

Surface plasmon resonance, isothermal titration calorimetry, and kinetic binding assays quantify IL18BP-IL18 interactions.

Can you explain the strategies used to assess the expression levels and tissue distribution of IL18BP in various physiological and pathological contexts?

RT-qPCR, immunohistochemistry, and tissue microarray analyses determine the expression patterns of IL18BP in different tissues and diseases.

Could you elaborate on the methods used to investigate the structural determinants of IL18BP's interaction with IL18 and its impact on receptor binding?

X-ray crystallography, NMR spectroscopy, and mutagenesis studies elucidate the structural basis of IL18BP-IL18 recognition.

How do researchers experimentally study the potential cross-talk between IL18BP and other cytokine regulatory systems, such as IL1Ra and soluble IL6 receptor?

Cross-competition assays, co-stimulation studies, and receptor activation assays unveil potential interplay between IL18BP and other cytokine regulators.

What assays and methodologies are employed to evaluate the therapeutic potential of enhancing or inhibiting IL18BP activity in inflammatory diseases?

Therapeutic antibody trials, in vitro functional screens, and disease model assessments evaluate IL18BP modulation as a potential anti-inflammatory strategy.