IL-9 Protein, Human (sf9, His)
IL-9 protein, secreted by T-helper 2 lymphocytes, mast cells, or NKT cells, regulates immune response against parasites, intestinal permeability, and adaptive immunity. It induces differentiation of TH17 cells and mast cell proliferation through IL9R and IL2RG receptor stimulation, activating JAK1, JAK3, STAT1, STAT3, and STAT5. IL-9's diverse effects are mediated by its interaction with IL9R subunit and IL2RG. IL-9 Protein, Human (sf9, His) is the recombinant human-derived IL-9 protein, expressed by Sf9 insect cells , with C-His labeled tag.
- Species: Human
- Source: Sf9 insect cells
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Storage:Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
Biological Activity
Description
IL-9 protein, secreted by T-helper 2 lymphocytes, mast cells, or NKT cells, regulates immune response against parasites, intestinal permeability, and adaptive immunity. It induces differentiation of TH17 cells and mast cell proliferation through IL9R and IL2RG receptor stimulation, activating JAK1, JAK3, STAT1, STAT3, and STAT5. IL-9's diverse effects are mediated by its interaction with IL9R subunit and IL2RG. IL-9 Protein, Human (sf9, His) is the recombinant human-derived IL-9 protein, expressed by Sf9 insect cells , with C-His labeled tag.
Background
IL-9 protein, a multifunctional cytokine primarily secreted by T-helper 2 lymphocytes, mast cells, or NKT cells, plays crucial roles in the immune response against parasites. Its impact extends to intestinal epithelial permeability and adaptive immunity. IL-9 further contributes to the differentiation of specific T-cell subsets, including IL-17 producing helper T-cells (TH17), and promotes the proliferation and differentiation of mast cells. Functionally, IL-9 exerts its biological effects through a receptor composed of the IL9R subunit and the signal transducing subunit IL2RG. Receptor stimulation rapidly activates JAK1 and JAK3 kinase activities, leading to STAT1, STAT3, and STAT5-mediated transcriptional programs. While the induction of differentiation genes appears to be mediated by STAT1 alone, the protection of cells from apoptosis depends on STAT3 and STAT5. IL-9 interacts with the IL9R subunit and IL2RG, forming a molecular basis for its diverse cellular effects.
Technical Parameters
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Species Human
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Source Sf9 insect cells
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Tag C-His
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Accession
P15248/NP_000581.1 (Q19-I144)
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Molecular Construction
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N-term
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IL-9 (Q19-I144)
Accession # P15248/NP_000581.1 -
His
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C-term
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Protein Length
Full Length of Mature Protein
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Synonyms
IL9; Homolog Of Mouse T Cell And Mast Cell Growth Factor 40; Interleukin 9; P40 T-Cell And Mast Cell Growth Factor; IL-9; Interleukin-9; T-Cell Growth Factor P40; P40 Cytokine; HP40; Cytokine P40; P40
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AA Sequence
QGCPTLAGILDINFLINKMQEDPASKCHCSANVTSCLCLGIPSDNCTRPCFSERLSQMTNTTMQTRYPLIFSRVKKSVEVLKNNKCPYFSCEQPCNQTTAGNALTFLKSLLEIFQKEKMRGMRGKI
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Predicted Molecular Mass
15.5 kDa
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Molecular Weight
Approximately 19-26 kDa band, based on SDS-PAGE under reducing conditions, due to the glycosylation.
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Glycosylation
Yes
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Solution
<1 EU/μg, determined by LAL method.
Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
Shipping with dry ice.
Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)