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SRP3241

Sigma-Aldrich

IL-13 Long Form from rat

≥98% (SDS-PAGE & HPLC), recombinant, expressed in E. coli, lyophilized, suitable for cell culture

Synonym(s):

NC300 (Human) P600 (Murine), interleukin 13

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.32

product name

IL-13 Long Form from rat, recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

biological source

rat

recombinant

expressed in E. coli

assay

≥98% (HPLC)
≥98% (SDS-PAGE)

form

lyophilized

potency

≤5.0 ng/mL ED50

mol wt

12.3 kDa

packaging

pkg of 10 μg

technique(s)

cell culture | mammalian: suitable

impurities

<0.1 EU/μg endotoxin, tested

color

white to off-white

UniProt accession no.

P42203

shipped in

wet ice

storage temp.

−20°C

Gene Information

rat ... IL13(116553)

Related Categories

General description

IL13 (interleukin 13) is a classic cytokine produced by Th2 (T-helper) cells. It was originally identified as an inflammatory cytokine production-inhibiting T-cell derived cytokine.
Human and murine IL-13 is cross-species reactive. Recombinant rat IL-13 is a 11.9kDa protein consisting of 109 amino acid residues.

Biochem/physiol Actions

IL13 (interleukin 13) is up-regulated during parasitic infections, and participates in host′s protective immunity against Schistosoma japonicum. This protein promotes eosinophil activation resulting in elevated specific IgE against adult and larval antigens. During acute infection it promotes egg expulsion through increased intestinal contractility. It acts as a liver protective agent where it promotes formation of liver granulomas in a CD4+ T cell-mediated manner, which results in liver fibrosis. In airway disorders, such as asthma, chronic obstructive pulmonary disease (COPD), and cystic fibrosis lung disease, IL13 promotes the formation of airway goblet cells, resulting in excess mucus secretion, which in turn, is regulated by IL13-activated autophagy.

Sequence

TPGPVRRSTS PPVALRELIE ELSNITQDQK TSLCNSSIVW SVDLTAGGFC AALESLTNIS SCNAIHRTQR ILNGLCNQKA SDVASSPPDT KIEVAQFISK LLNYSKQLFR YGH

Physical form

Lyophilized with no additives.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. 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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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IL-13 effector functions
Wynn TA
Annual Review of Immunology, 21, 425-456 (2003)
An IL-13 promoter polymorphism associated with liver fibrosis in patients with Schistosoma japonicum.
Long X et al
PLoS ONE, 10(8), e0135360-e0135360 (2015)
IL13 activates autophagy to regulate secretion in airway epithelial cells.
Dickinson JD et al
Autophagy, 12(2), 397-409 (2016)
M Wills-Karp et al.
Science (New York, N.Y.), 282(5397), 2258-2261 (1998-12-18)
The worldwide incidence, morbidity, and mortality of allergic asthma are increasing. The pathophysiological features of allergic asthma are thought to result from the aberrant expansion of CD4(+) T cells producing the type 2 cytokines interleukin-4 (IL-4) and IL-5, although a

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