IL6 Human, Sf9

IL6 Human, Sf9

Cytokines

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  • Name :

    IL6 Human, Sf9

    Description:

    Interleukin-6 Human Recombinant, Sf9

    BSF2, HGF, HSF, IFNB2, IL-6.

    Product # :

    CYT-1150

    Price :

    Quantity :

    Shipping Method :

    Ice Icon

    Shipped with Ice Packs

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  • description
  • source
  • formulation
  • purity
  • biological activity
  • More Info

Description

IL6 Human Recombinant produced in Baculovirus is a single glycosylated polypeptide chain containing 189 amino acids (30-212aa) and having a molecular mass of 21.6kDa.(Migrates at 18-28kDa on SDS-PAGE under reducing conditions).IL6 is fused to a 6 amino acid His-Tag at C-terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

IL6 protein (0.5mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 10% glycerol.

Purity

Greater than 95.0% as determined by SDS-PAGE.

Biological Activity

The ED50, determined by cell proliferation assay using TF-1 human erythroleukemic cell, is 0.2 - 0.8 ng/ml . 

More Info

  • Introduction

    Interleukin-6 or Il-6 is a cytokine with a large assortment of biological functions. IL-6 it has a crucial part in the last differentiation of b-cells into ig-secreting cells. This cytokine also induces myeloma and plasmacytoma growth. Interleukin-6 induces nerve cells differentiation, among hepatocytes it induces acute phase reactants.

  • Synonyms

    BSF2, HGF, HSF, IFNB2, IL-6.

  • Physical Appearance

    Sterile Filtered colorless solution.

  • Stability

    Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

  • Amino Acid Sequence

    VPPGEDSKDV AAPHRQPLTS SERIDKQIRY ILDGISALRK ETCNKSNMCE SSKEALAENN
    LNLPKMAEKD GCFQSGFNEE TCLVKIITGL LEFEVYLEYL QNRFESSEEQ ARAVQMSTKV
    LIQFLQKKAK NLDAITTPDP TTNASLLTKL QAQNQWLQDM TTHLILRSFK EFLQSSLRAL RQMHHHHHH.

  • Background

    Production and Applications of Human Recombinant Interleukin-6 in Sf9 Cells

    Abstract:

    Interleukin-6 (IL-6) holds a central role in immune regulation, inflammation, and hematopoiesis. The production of Human Recombinant IL-6 using the Sf9 insect cell system presents a versatile approach for investigating its biological functions and potential therapeutic applications. This paper outlines the methodology of producing Human Recombinant IL-6 in Sf9 cells and explores its significance in immunological research and clinical studies.

    Introduction:

    IL-6 is a multifunctional cytokine pivotal in various physiological processes, making it a target of intensive research. The expression of Human Recombinant IL-6 facilitates investigations into its intricate mechanisms and offers potential avenues for therapeutic development. The Sf9 cell system, harnessed from Spodoptera frugiperda, enables efficient recombinant protein expression through baculovirus vectors.

    Methods:

    Production of Human Recombinant IL-6 involves cloning the human IL-6 gene into a baculovirus transfer vector, which is co-transfected with linearized baculovirus DNA into Sf9 cells. The resultant recombinant baculovirus generates and secretes IL-6 into the culture medium. Purification methods, such as chromatography, ensure the protein's quality and functionality.

    Applications:

    Human Recombinant IL-6 from Sf9 cells has broad applications. It serves as a critical tool for investigating IL-6's roles in immune responses, inflammation, and hematopoiesis. Additionally, it plays a crucial role in the development of therapies targeting IL-6-associated disorders like autoimmune diseases, chronic inflammatory conditions, and cancer.

    Sf9 Expression Advantages:

    The Sf9 system offers notable advantages, including post-translational modifications and protein folding, necessary for IL-6's biological activity. Sf9 cells provide a platform for generating properly folded and functional recombinant IL-6, reflecting its native structure and function.

    Challenges and Future Prospects:

    While Sf9-based expression of Human Recombinant IL-6 offers significant advantages, optimization of expression conditions and scale-up strategies remain challenges. Furthermore, the therapeutic potential of Human Recombinant IL-6 requires in-depth preclinical and clinical investigations.

    Conclusion:

    The production of Human Recombinant IL-6 in Sf9 cells through baculovirus expression offers a powerful tool to comprehend IL-6's multifaceted roles in health and disease. This technology is poised to expand our knowledge of IL-6-related conditions and catalyze the development of precision therapeutic interventions.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Il6 Human

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Frequently asked questions

1. Which company offers Recombinant cytokines at competitive prices?

ProSpec offers vast array of cytokines such as Interferon-alpha | Interleukin-2 | TNF-alpha | BMP-2 and much more at affordable descent prices to meet academic budgets.
ProSpec provides High Purity cytokines for 30 years, purity exhibits 95% or more by SDS-PAGE gel.
Cytokines are in stock for immediate delivery via FedEx which enables scientists and researchers to perform immediate experiments.
Cytokines are shipped globally using ProSpec’s custom tailored Styrofoam insulated box and premium ice packs that ensure maximum protein stability during transit to your laboratory.

2. Where can i find biologically active cytokines?

ProSpec offers biologically functional cytokines such as Adiponectin | Cardiotrophin | Beta Defensin which are rigorously tested in-vitro to provide researchers world wide BioActive Cytokines.

3. What is the activity validation method for Cytokines?

ProSpec uses cell-based bioassays that measures the biological activity, for example:
Adiponectin is validated using AMPK phosphorylation assay, glucose uptake assay.
Angiopoietin is validated using Endothelial tube formation assay, Tie2 phosphorylation assay.
Apolipoprotein is validated using Lipid-binding assay, receptor-binding assay.
Beta Defensin is validated using Antimicrobial assay.
Betacellulin is validated using Cell proliferation assay (EGFR-positive cells).
Bone Morphogenetic Protein is validated using Alkaline phosphatase induction assay.

4. Is the cytokine full length or partial?

The cytokine proteins are both full length and partial while majority of them are active mature proteins rather than a full-length precursor. ProSpec active mature proteins exhibits higher expression yields, better stability, Easier purification and Equivalent biological activity as full length precursor.

5. Is the cytokine monomeric or dimeric form?

This depends on the cytokine. ProSpec cytokines are supplied in the native biologically active oligomeric state, which can be monomeric, dimeric, trimeric, or even multimeric since because receptor binding and biological activity often depend on correct oligomerization.
The interleukin and interferon protein family are usually provided as monomer proteins though adiponectin and TNFSF8 are supplied as homodimers.

6. What is the cytokine purity and how was it determined?

The cytokine purity ranges from high purity of ≥95% to premium grade ≥97%.
ProSpec uses SDS-PAGE Coomassie Blue Staining as the primary purity method which Visualizes protein bands. Some SDS-PAGE gels are stained with Silver Stain. Other analytical methods include RP-HPLC [ High-resolution purity determination ] , SEC-HPLC for the detections of aggregates and fragments and Western Blot to confirm cytokine identity.

7. Is the cytokine sequence verified?

The amino acid sequence verification is performed at DNA & protein level.
Sanger DNA Sequencing verifies the expression plasmid having correct coding.
LC-MS is used to verify the molecular weight of the final purified cytokine
Prospec also uses Edman N-terminal Sequencing to determine the amino-terminal sequence.

8. What is the endotoxin level in cytokines and how do you test LPS ?

ProSpec cytokines are tested for endotoxin also named LPS [ lipopolysaccharide ] which is found in the outer membrane of Gram-negative bacteria which can affect cytokine secretion, cell proliferation and stem cell.
ProSpec measures endotoxin using the Limulus Amebocyte Lysate [ LAL ] assay such as Gel-Clot.
ProSpec standard Endotoxin level for cytokines is usually <1 EU/ug.
What Does "EU" Mean? EU = Endotoxin Units

9. Is there host cell protein contamination?

There might be a minor existence of host-cell proteins post chromatography purification and quality-control procedures that greatly minimize these impurities. ProSpec tests host-cell protein levels by SDS-PAGE silver staining, or mass spectrometry.

10. Is the protein tested in vitro, in-vivo cell culture, stem cells, T cells, ELISA, western blot?

PoSpec Proteins are usually tested for biological activity and identity, while some proteins are not though supported by literature and customer experience. Interleukins are tested in T-cell, NK-cell, PBMC, stem cell culture. Interferons are tested in Antiviral assays, immune-cell activation, TNFA proteins are tested in Apoptosis, inflammation and immune studies. ProSpec does not conduct in-vivo or animal injections experiments in house or our source.