IL4 (Human) Recombinant Protein
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Specification
Product Description
Human IL4 (NP_000580, 25 a.a.- 153 a.a.) partial recombinant protein with C-terminal His tag expressed in HEK293 cells.
Host
Human
Theoretical MW (kDa)
16.1
Form
Liquid
Preparation Method
Mammalian cell (HEK293) expression system
Purity
> 90% by SDS-PAGE
Endotoxin Level
< 1 EU per 1 ug of protein (determined by LAL method).
Activity
Measured in a cell proliferation assay using TF-1 human erythroleukemic cell. The ED50 range ≤ 0.5 ng/mL.
Quality Control Testing
3 ug by SDS-PAGE under reducing condition and visualized by coomassie blue stain.
Recommend Usage
Bioactivity
SDS-PAGE
The optimal working dilution should be determined by the end user.Storage Buffer
In PBS, pH 7.4 (10% glycerol).
Storage Instruction
Store at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20°C to -80°C.
Aliquot to avoid repeated freezing and thawing.Note
Result of bioactivity analysis
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Applications
SDS-PAGE
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Gene Info — IL4
Entrez GeneID
3565Protein Accession#
NP_000580Gene Name
IL4
Gene Alias
BCGF-1, BCGF1, BSF1, IL-4, MGC79402
Gene Description
interleukin 4
Omim ID
147780Gene Ontology
HyperlinkGene Summary
The protein encoded by this gene is a pleiotropic cytokine produced by activated T cells. This cytokine is a ligand for interleukin 4 receptor. 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 a central role in mediating the immune regulatory signal of this cytokine. This gene, IL3, IL5, IL13, and CSF2 form a cytokine gene cluster on chromosome 5q, with this gene particularly close to IL13. This gene, IL13 and IL5 are found to be regulated coordinately by several long-range regulatory elements in an over 120 kilobase range on the chromosome. Two alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported. [provided by RefSeq
Other Designations
B cell growth factor 1|B_cell stimulatory factor 1|lymphocyte stimulatory factor 1
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