Under non-reducing SDS-PAGE conditions, the heterodimeric cysteine-linked Mouse IL-23 Recombinant Protein Carrier-Free migrates as a 60 kDa protein (Lane NR). Under DTT-reducing conditions it migrates as 43 kDa and 21 kDa polypeptides (Lane R).

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Product Details

34-8231-82

Applications

Tested Dilution

Publications

Miscellaneous PubMed (Misc)

View 1 publication 1 publication

Western blot control (WB Ctrl)

Assay-Dependent

Bioactivity (Bioactivity)

Assay-dependent

Product Specifications

Species

Mouse

Expression System

Insect cells

Amino acid sequence

Mouse IL-23, p40 subunit amino acids Met1-Ser355 (Accession # NM_008352) was coexpressed with subunit p19 amino acids Met1-Ala196 (Accession # AF301619)

Molecular weight

55.6 kDa

Class

Recombinant

Type

Protein

Purity

>98% by SDS-PAGE

Endotoxin concentration

<0.01 ng/µg

Activity

ED50 ≤ 625 pg/mL; determined by the dose-dependent induction of IL-17A expression in mouse splenocytes. This corresponds to a specific actvity greater than or equal to 1.5x10e6 Units/mg.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

0.5 mg/mL

Amount

100 µg

Purification

purified

Storage buffer

PBS, pH 6.0

Contains

no preservative

Storage conditions

-80°C

Shipping conditions

Dry ice

Product Specific Information

Description: IL-23 is a heterodimeric cytokine composed of the p40 subunit of IL-12 disulfide-linked with a protein p19. p19, like p35 of IL-12, is biologically inactive by itself. IL-23 interacts with IL-12Rbeta1 and an additional, novel beta2-like receptor subunit with STAT4 binding domain, termed IL-23R. IL-23 is secreted by activated mouse and human dendritic cells. Biological activities of mouse IL-23 are distinct from those of mouse IL-12. Mouse IL-23 was found not to induce significant amounts of IFN-gamma. Mouse IL-23 does induce strong proliferation of memory T cells (but not naive T cells), whereas IL-12 has no effect on memory cells. Additionally, mouse IL-23 (but not IL-12) can activate mouse memory T cells to produce the proinflammatory cytokine IL-17. Human IL-23 has biological properties which are less distinct from human IL-12; human IL-23 induces proliferation of memory T cells and induces moderate levels of IFN-gamma production by naive and memory T cells, as compared to IL-12.

Applications Reported: Mouse IL-23 Recombinant Protein Carrier-Free has been reported for use in cytokine bioassays.

Applications Tested: The ED50 of this protein, as measured by IL-17A induction in mouse splenocytes, is less than or equal to 625 pg/mL. This corresponds to a specific activity of greater than 1.5 x 10e6 Units/mg.

Source: Insect cells infected with baculovirus: mouse p40, amino acids met 1-Ser 355, accession # NM_008352 was co-expressed with mouse p19, amino acids met 1-Ala 196, accession # AF301619.

Bioactivity: The ED50 of this protein, as measured by IL-17A induction in mouse splenocytes, is less than or equal to 625 pg/mL. This corresponds to a specific activity of greater than 1.5 x 10e6 Units/mg.

Endotoxin: Less than 0.01 ng/ug cytokine as determined by the LAL assay. Purity: >98% as determined by SDS-PAGE.

Molecular Weight: The heterodimer of p40, amino acids met 23-ser 355, cystine-linked to p19, amino acids leu 20-ala 196, has a predicted molecular mass of 55,616. On non-reducing SDS-PAGE the heterodimeric cystine-linked protein migrates as a 60 kDa protein. The DTT reduced protein migrates as 43 kDa and 21 kDa polypeptides.

Storage and handling: For best recovery, quick-spin vial prior to opening. Use in a sterile environment.

Target Information

IL-23 is a heterodimeric cytokine composed of the p40 subunit of IL-12 disulfide-linked with a protein p19. p19, like p35 of IL-12, is biologically inactive by itself. IL-23 interacts with IL-12Rbeta1 and an additional, novel beta2-like receptor subunit with STAT4 binding domain, termed IL-23R. IL-23 is secreted by activated mouse and human dendritic cells. Biological activities of mouse IL-23 are distinct from those of mouse IL-12. Mouse IL-23 was found not to induce significant amounts of IFN-γ. Mouse IL-23 does induce strong proliferation of memory T cells (but not naive T cells), whereas IL-12 has no effect on memory cells. Additionally, mouse IL-23 (but not IL-12) can activate mouse memory T cells to produce the proinflammatory cytokine IL-17. Human IL-23 has biological properties which are less distinct from human IL-12; human IL-23 induces proliferation of memory T cells and induces moderate levels of IFN-γ production by naive and memory T cells, as compared to IL-12.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

Bioinformatics

Protein Aliases: il 23; IL 23 A; Il-12b; Il-12p40; IL-23 subunit alpha; IL-23-A; IL-23p19; IL12B; Il12p40; il23; ILN; Interleukin; interleukin 12B; Interleukin-23 subunit alpha; Interleukin-23 subunit p19; MGC79388; p40; RP23-388G23.1

Mouse IL-23 (Carrier-Free) Recombinant Protein

Mouse IL-23 (Carrier-Free) Protein (34-8231-82) in WB Ctrl