Recombinant Rat IL-4 Protein
Sizes: 10ug, 20g, 50ug, 100ug
Catalogue Numbers: RP01874-10, RP01874-20, RP01874-50, RP01874-100
Citations, Manuals and MSDS Available upon request.
Description: Recombinant Rat IL-4 Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Cys25-Ser147) of Rat IL-4 (Accession #NP_958427.1) fused with a His at the C-terminus.
Alternate Names: B-cell growth factor 1; B-cell IGG differentiation factor; B-cell stimulatory factor 1; BSF-1; H-IL-4; IL-4; ILN; Interleukin; Interleukin-4; Interleukin4; Lymphocyte stimulatory factor 1; M-IL-4; MGC79402
SWISS: P20096
GeneID: 287287
Species: Rat
Purity: ≥ 90% as determined by SDS-PAGE.
Storage: Store at -20 ℃. Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.
Background: Interleukin-4 (IL-4) is a pleiotropic, immune-modulatory cytokine produced by activated T cells, and serves as a ligand for interleukin 4 receptor. IL-4 has been found to have the broadest range of actions. The interleukin 4 receptor also binds to IL13, which may contribute to many overlapping functions of this cytokine and IL13. STAT6, a signal transducer and activator of transcription, has been shown to play an important role in mediating the immune regulatory signal of IL-4. The IL-4 gene, IL-3, IL-5, IL-13, and CSF2 form a cytokine gene cluster on chromosome 5q. In particular, IL-4 is located in close proximity to IL13 on the chromosome. Further, the IL-4 gene, IL13 and IL5 are found to be coordinated by several long-range regulatory elements over a 120 kilobase range on the chromosome. IL-4 delta 2 is a known splice variant of IL-4.
Bio-Activity: Measured in a cell proliferation assay using TF-1 Human erythroleukemic cells. The ED50 for this effect is 0.65-2.6 μg/mL, corresponding to a specific activity of 3.85×10^2 ~1.54×10^3 units/mg.
Source: HEK293 cells
Tag: C-His
Formulation: Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.
Antigen Sequence: CNDSPLREIINTLNQVTEKGTPCTEMFVPDVLTATRNTTENELICRASRVLRKFYFPRDVPPCLKNKSGVLGELRKLCRGVSGLNSLRSCTVNESTLTTLKDFLESLKSILRGKYLQSCTSMS
Endotoxin: < 0.01 EU/μg of the protein by LAL method
Research Use Only