IL-13 is an immunoregulatory cytokine produced primarily by activated Th2 cells, and also by mast cells and NK cells. Targeted deletion of IL-13 in mice resulted in impaired 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 IL-1β, TNF-α, IL-6 and IL-8. IL-13 has also been shown to enhance B cell proliferation and to induce isotype switching, resulting in increased production of IgE. Blocking of IL-13 activity inhibits the pathophysiology of asthma. Human and murine IL-13 are cross-species reactive. Recombinant Human IL-13 is a 12.6 kDa protein consisting of 115 amino acid residues.
The recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted protein is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing the recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
- Tested Applications: N/A
- Applications: N/A
- Predicted Molecular Weight: N/A
- Physical state: Lyophilized
- Buffer: N/A
- Concentration: N/A
- NCBI official symbol: IL13
- Accession #: N/A
- Protein GI: N/A
- NCBI gene ID#: 3596
- NCBI official full name: interleukin 13
- NCBI organism: Homo sapiens
- Peptide sequence: MSPGPVPPST ALRELIEELV NITQNQKAPL CNGSMVWSIN LTAGMYCAAL ESLINVSGCS AIEKTQRMLS GFCPHKVSAG QFSSLHVRDT KIEVAQFVKD LLLHLKKLFR EGRFN
- SWISSPROT #: P35225
- Background Reference 1: N/A
- Background Reference 2: N/A
- Background Reference 3: N/A
- Background Reference 4: N/A
- Background Reference 5: N/A
- Source: E. coli
- Species: Human, Mouse
- By Source: E. coli
- By Species: Human
- Fusion tag: N/A
- Sequence: MSPGPVPPST ALRELIEELV NITQNQKAPL CNGSMVWSIN LTAGMYCAAL ESLINVSGCS AIEKTQRMLS GFCPHKVSAG QFSSLHVRDT KIEVAQFVKD LLLHLKKLFR EGRFN
- Biology activity: Determined by its ability to stimulate the proliferation of human TF-1 cells. The expected ED50 is ≤ 1.0 ng/ml, corresponding to a specific activity of ≥1 x 106 units/mg.
- Purity: ≥ 98% by SDS-PAGE gel and HPLC analyses.
This product is for research use only.
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