IL 4 Protein (OPPA00647)

Catalog No: OPPA00647 (Formerly GWB-5FDEF3)

Size:5UG

Product Info

• Predicted Species Reactivity: Rat
• Product Format: Lyophilized from a concentrated (1mg/ml) solution in water containing no additives. Physical appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
• Host: E. Coli
• Additional Information: Solubility: It is recommended to reconstitute the lyophilized Interleukin 4 in sterile 18M Omega -cm H2O not less than 100 ug/ml, which can then be further diluted to other aqueous solutions.
  Biological Activity: The ED50 as determined by the dose-dependant prolifiration of Con A activated rat spleen cells is < 1.5 ng/ml, corresponding to a Specific Activity of 6.6 x 10⁵ IU/mg.
  Protein Content: Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbencyvalue of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of IL-4 as a Reference Standard.
  Protein Content: Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbencyvalue of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of IL-4 as a Reference Standard.
  Product Introduction: IL4 is a pleiotropic cytokine produced by activated T cells. IL4 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. IL4, 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.
  Product Description: Interleukin-4 Rat Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 126 amino acids and having a molecular mass of 14105 Dalton. The IL-4 is purified by proprietary chromatographic techniques.
• Reconstitution and Storage: Lyophilized Interleukin-4 although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution IL4 should be stored at 4C between 2-7 days and for future use below -18C. For long term storage it is recommended to add a carrier protein (0. 1% HSA or BSA). Please prevent freeze-thaw cycles.
• Purity: Greater than 98.0% as determined by (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
• Peptide Sequence: The sequence of the first five N - terminal amino acids was determined and was found to be Met - His - Gly - Cys - Asn.

Target Info

• Gene Symbol: IL4
• Alias Symbols: Il4e12
• NCBI Gene Id: 287287
• Protein Name: Interleukin-4
• Description of Target: Recombinant Rat Interleukin-4
• Uniprot ID: P20096
• Protein Accession #: NP_958427.1
• Protein Size (# AA): Recombinant