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SRP3274

Sigma-Aldrich

IL-13 human

Animal-component free, recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC)

Synonym(s):

NC300

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.32

biological source

human

recombinant

expressed in E. coli

Assay

≥98% (HPLC)
≥98% (SDS-PAGE)

form

lyophilized

potency

≥1.0 ng/mL

mol wt

12.6 kDa

packaging

pkg of 10 μg

impurities

<0.1 EU/μg endotoxin, tested

color

white to off-white

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... IL13(3596)

General description

Interleukin-13 (IL-13) is an immunoregulatory cytokine produced primarily by activated T-helper 2 (Th2) cells,and also by mast cells and natural killer (NK) cells. The gene encoding it is localized on human chromosome 5q31. Human and murine IL-13 is cross-species reactive. Recombinant human IL-13 is a 12.6kDa protein consisting of 115 amino acid residues.

Biochem/physiol Actions

Interleukin-13 (IL-13) has a role in immune activities against infections and influences the function of various cells taking part in the same. It has been studied to be overexpressed in glioblastoma tumors and cell lines. IL-13 stimulates fibrosis in many infectious diseases. Targeted deletion of IL-13 in mice resulted in impaired T-helper 2 (Th2) cell development and indicated an important role for IL-13 in the expulsion of gastrointestinal parasites. IL-13 exerts anti-inflammatory effects on monocytes and macrophages and it inhibits the expression of inflammatory cytokines such as tumor necrosis factor-α (TNF-α), interleukins-1β, -6 and -8. IL-13 has also been shown to enhance B cell proliferation and to induce isotype switching resulting in increased production of immunoglobulin E (IgE). Blocking of IL-13 activity inhibits the pathophysiology of asthma.

Physical form

Lyophilized from 20mM Sodium Phosphate, pH 7.0.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/mL. Note: Slow to dissolve. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Ji-Yun Lee et al.
Journal of immunology (Baltimore, Md. : 1950), 194(12), 5990-5998 (2015-05-15)
Mucin overproduction is a hallmark of otitis media (OM). Streptococcus pneumoniae is one of the most common bacterial pathogens causing OM. Mucin MUC5AC plays an important role in mucociliary clearance of bacterial pathogens. However, if uncontrolled, excessive mucus contributes significantly
Genetic variants of IL-13 signalling and human asthma and atopy.
Heinzmann A
Human Molecular Genetics, 9(4), 549-559 (2000)
Gui Yang et al.
The Journal of biological chemistry, 290(20), 12858-12867 (2015-04-04)
Restoration of the antigen (Ag)-specific immune tolerance in an allergic environment is refractory. B cells are involved in immune regulation. Whether B cells facilitate the generation of Ag-specific immune tolerance in an allergic environment requires further investigation. This paper aims
IL-4, IL-10 and IL-13 down-regulate monocyte-chemoattracting protein-1 (MCP-1) production in activated intestinal epithelial cells.
Kucharzik T
Clinical and Experimental Immunology, 111(1), 152-157 (1998)
Lu Liu et al.
Journal of experimental & clinical cancer research : CR, 41(1), 358-358 (2022-12-25)
IFN-γ is a key mediator of tumor immunity that can induce macrophage polarization to suppress tumor growth. Cyclin G2 functions as a tumor suppressor in various cancer cells; however, its role in macrophages remains unclear. This study aimed to investigate

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