MaxLight™ 490 is a new Blue-Green photostable dye conjugate comparable to DyLight™488, Alexa Fluor™488 and offers better labeling efficiency, brighter imaging and increased immunodetection. Absorbance (491nm); Emission (515nm); Extinction Coefficient 73,000.||Interleukin-4 (IL-4), also knowns as a B-cell stimulatory factor1 (BSF1), is an immunomodulatory cytokine, which can inhibit the growth of tumour 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.||UniProt Number:|P05112||Gene ID:|IL4||Applications:|Suitable for use in FLISA, Western Blot, Immunohistochemistry (Paraffin), Neutralization and Immunoprecipitation.||Recommended Dilution:|Optimal dilutions to be determined by the researcher.||Storage and Stability:|Store product at 4°C in the dark. DO NOT FREEZE! Stable at 4°C for 12 months after receipt as an undiluted liquid. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Caution: MaxLight™490 conjugates are sensitive to light. For maximum recovery of product, centrifuge the original vial prior to removing the cap.||Note: Applications are based on unconjugated antibody.Product Type:Pab|Isotype: IgG|Host: rabbit|Source: human|Concentration: As reported|Form: Supplied as a liquid in PBS, pH 7.2. Labeled with MaxLight™490.|Purity: Purified by immunoaffinity chromatography.|Immunogen: E. coli-derived human IL-4 recombinant protein (Position: H25-S153).|Specificity: Recognizes human IL-4. No crossreactivity with other proteins.||Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.

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