Active Recombinant Pig IL4 Protein (His25-Cys133), C-His tagged, Animal-free, Carrier-free

• Cat.No.: IL4-208P
• Product Overview: Recombinant Pig IL4 Protein (His25-Cys133) with C-His tag was expressed in E. coli and Animal-free as well as Carrier-free.

Specification

• Description: Interleukin-4 (IL-4) is a key cytokine produced by activated T cells, mast cells, basophils, neutrophils and eosinophils. IL-4 is critical for the development of Th2-mediated responses, which is related to allergy and asthma. It can also regulate B cell responses, including survival, cell proliferation and gene expression. IL-4 also plays fundamental role for B-cell stimulation, including induction of the IgE isotype switch.
• Source: E. coli
• Species: Pig
• Tag: C-His
• Form: Lyophilized
• Bio-activity: Measure by its ability to induce proliferation in TF-1 cells. The ED50 for this effect is < 0.6 ng/mL.
• Molecular Mass: The protein has a calculated MW of 13.5 kDa.
  The protein migrates as 15 kDa under reducing condition (SDS-PAGE analysis).
• Protein Length: His25-Cys133
• Endotoxin: < 0.1 EU/μg of the protein by the LAL method.
• Purity: >98% as determined by SDS-PAGE analysis.
• Storage: This product is stable after storage at:
  -20 centigrade for 12 months in lyophilized state from date of receipt.
  -20 or -80 centigrade for 1 month under sterile conditions after reconstitution.
  Avoid repeated freeze/thaw cycles.
• Storage Buffer: Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
• Reconstitution: It is recommended to reconstitute the lyophilized protein in sterile H2O to a concentration not less than 200 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
• Shipping: The product is shipped with polar packs. Upon receipt, store it immediately at -20 centigrade or lower for long term storage.

Gene Information

• Gene Name: IL4 interleukin 4 [ Sus scrofa ]
• Official Symbol: IL4
• Synonyms: IL4; interleukin 4; interleukin-4; IL-4; BSF-1; B-cell stimulatory factor 1; lymphocyte stimulatory factor 1
• Gene ID: 397225
• mRNA Refseq: NM_214123
• Protein Refseq: NP_999288
• UniProt ID: Q04745