144744
IL-4 (B Cell stimulatory factor 1)
Size
£620.00
- SKU:
- 144744
- Purity:
- Purified by immunoaffinity chromatography.
- Storage Conditions:
- -20°C
- Supplier:
- United States Biological
- Host:
- Rabbit
- Immunogen:
- E. coli-derived human IL-4 recombinant protein (Position: H25-S153).
- Format:
- Supplied as a lyophilized powder from PBS, 0.05% sodium azide. Reconstitute with 200ul sterile dH2O.
- Extra Details:
- Interleukin-4 (IL-4), also knowns as a B-cell stimulatory factor1 (BSF1), is an immunomodulatory cytokine, which can inhibit the growth of tumor cells.1 The human cDNA contains a single open reading frame encoding a protein of 153 amino acids, including a putative signal peptide. IL-4 may act as an autocrine growth factor in pancreatic cancer cells and also give rise to the possibility that cancer-derived IL-4 may suppress cancer-directed immunosurveillance in vivo in addition to its growth-promoting effects, thereby facilitating pancreatic tumor growth and metastasis.1 The mouse and human genes and their protein products show structural and functional similarities. The human IL-4 gene, which occurs as a single copy in the haploid genome, is mapped on chromosome 5.2 The standard product used in this kit is recombinant human IL-4, consisting of 130 amino acids with the molecular mass of 14KDa. Applications: Suitable for use in ELISA, Western Blot and Immunohistochemistry. Other applications not tested. Recommended Dilution: Western Blot: 0.1-0.5ug/ml Immunohistochemistry (paraffin): 0.5-1ug/ml ELISA: 0.1-0.5ug/ml Optimal dilutions to be determined by the researcher. Storage and Stability: Lyophilized and reconstituted products are stable for 12 months after receipt at -20°C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
- Shipping Conditions:
- Blue Ice