IL-4 BioAssay(TM) ELISA Kit, Rat

Sandwich ELISA quantitative detection kit for Rat IL-4 in cell culture supernates and serum. 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. 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. 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 Rat IL-4 is a 13.5kD glycoprotein, consisting of 147 amino acids in precursor form and 123 amino acids in mature form. , Assay Range:, 15.6pg/ml-1000pg/ml, Sensitivity: < 1 pg/ml, Crossreactivity: There is no detectable cross-reactivity with other relevant proteins. Uniprot ID: P20096, Entrez Gene ID: 287287, Kit Components: 96-well plate pre-coated with anti-IL-4, Rat, Lyophilized recombinant IL-4, Rat standard, 10ng/tube, 2Ea, USB Cat No Kit Component, 143696 Avidin-Biotin-Peroxidase Complex (ABC), 130ul (1:100 dilution), 143697 Sample diluent buffer, 30ml, 143698 Antibody diluent buffer, 12ml, 143699 ABC diluent buffer, 12ml, 143700 TMB color developing agent, 10ml, 143701 TMB stop solution, 10ml, Storage and Handling: Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles.