1. Recombinant Proteins
  2. Cytokines and Growth Factors
  3. Interleukin & Receptors
  4. IL-17
  5. IL-17A
  6. IL-17A Protein, Human (HEK293, His)

IL-17A Protein, Human (HEK293, His)

Cat. No.: HY-P70527
SDS COA Handling Instructions

IL-17A is a homodimeric cytokine and plays a critical role in host defense mechanisms against many bacterial and fungal pathogens as well as allergic and autoimmune responses. IL-17A induces the production of antimicrobial peptides, cytokines, chemokines, and matrix metalloproteinases. IL-17A Protein, Human (HEK293, His) is a recombinant human IL-17A protein with His tag at the C-terminus and is expressed in HEK293 cells. It consists of 132 amino acids (G24-A155).

For research use only. We do not sell to patients.

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  • Biological Activity

  • Technical Parameters

  • Properties

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  • References

Description

IL-17A is a homodimeric cytokine and plays a critical role in host defense mechanisms against many bacterial and fungal pathogens as well as allergic and autoimmune responses. IL-17A induces the production of antimicrobial peptides, cytokines, chemokines, and matrix metalloproteinases[1][2]. IL-17A Protein, Human (HEK293, His) is a recombinant human IL-17A protein with His tag at the C-terminus and is expressed in HEK293 cells. It consists of 132 amino acids (G24-A155).

Background

Interleukin-17A (IL-17A), also known as CTLA-8, belongs to the IL-17 cytokine family. IL-17A is expressed in memory Th17 cells and is a product of memory CD4+ T cells. IL-17A is also produced by a wide variety of immune cells, including CD8+ T cells, γδT cells, natural killer T (NKT) cells, monocytes, and neutrophils[1][2][3].
The human IL-17A shares 63.23% amino acid sequence identity with mouse and 61.90% identity with rat.
IL-17A plays a critical role in host defense mechanisms against many bacterial and fungal pathogens as well as allergic and autoimmune responses. IL-17A induces the production of antimicrobial peptides (defensins and S100 proteins), cytokines (IL-6, G-CSF, and GM-CSF), chemokines (CXCL1, CXCL5, IL-8, CCL2, and CCL7), and matrix metalloproteinases (MMP1, MMP3, and MMP13). IL-17A is detrimental in viral infection through promoting neutrophilic inflammation. IL-17A is a homodimeric cytokine and shares similar biological activities with IL-17F. IL-17A binds to IL-17RA with high affinity, and IL-17RA is required for the biological activity of IL-17A. In tumorigenesis, IL-17A recruits myeloid derived suppressor cells (MDSCs) to dampen anti-tumor immunity. IL-17A also enhances tumor growth in vivo through the induction of IL-6[1][2].
IL-17A can be used for the research of autoimmune diseases, infection and cancer[1][4].

In Vitro

IL-17A (100 ng/mL; 24 h) inhibits the expression of thymic stromal lymphopoietin (TSLP) in human primary keratinocytes[5].
IL-17A (0.1–100 ng/mL; 0-24 h) significantly potentiates TNF-α-induced IL-8 protein secretion and gene expression in a concentration- and time-dependent manner[6].

Biological Activity

Measured by its ability to induce IL-6 secretion by NIH-3T3 mouse embryonic fibroblast cells and the ED50 for this effect is 1-10 ng/mL.

Species

Human

Source

HEK293

Tag

C-6*His

Accession

Q16552 (G24-A155)

Gene ID
Molecular Construction
N-term
IL-17A (G24-A155)
Accession # Q16552
6*His
C-term
Synonyms
Interleukin-17A; IL-17; IL-17A; Cytotoxic T-Lymphocyte-Associated Antigen 8; CTLA-8; IL17A; CTLA8; IL17
AA Sequence

GITIPRNPGCPNSEDKNFPRTVMVNLNIHNRNTNTNPKRSSDYYNRSTSPWNLHRNEDPERYPSVIWEAKCRHLGCINADGNVDYHMNSVPIQQEILVLRREPPHCPNSFRLEKILVSVGCTCVTPIVHHVA

Molecular Weight

Approximately 15-24kDa due to the glycosylation.

Purity
  • Greater than 95% as determined by reducing SDS-PAGE.
  • Measured by its ability to induce IL-6 secretion by NIH‑3T3 mouse embryonic fibroblast cells.The ED50 for this effect is 3.295 ng/mL, corresponding to a specific activity is 3.03×105 U/mg.
Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4 or PBS, pH 7.4, 8% trehalose.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation
References

IL-17A Protein, Human (HEK293, His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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IL-17A Protein, Human (HEK293, His)
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HY-P70527
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