{"product_id":"new-product-596520","title":"Recombinant Human IL-4","description":"\u003cp\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRecombinant Human IL-4\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e50μg, 200μg, 1mg\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecies\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHuman\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHost\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eE.Coli\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpression Region\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e25-153\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMol. Weight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e14.1 kDa\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTags\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eN-terminal His Tag\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePurity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGreater than 95% as determined by SDS-PAGE\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWestern Blot, ELISA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eActivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMeasured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 for this effect is 0.1-0.5 ng\/mL.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFormulation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLyophilized from a 0.2 μm filtered solution in 10 mM Hepes, 500 mM NaCl with 5% trehalose, pH7.4\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReconstitution\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCentrifuge the vial prior to opening, reconstitute in sterile distilled water or buffer of interest to concentration of 0.1-1mg\/ml by gently pipetting 2-3 times, don't vortex\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe lyophilized protein is stable at -20°C for up to 1 year, the protein solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing 0.1% BSA (make sure BSA will NOT interfere with your experiment ) and store in working aliquots at -20°C to -80°C for 6 months.Avoid repeated freeze\/thaw cycle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlternative Names\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eB cell growth factor 1, B cell IgG differentiation factor, B Cell Stimulatory Factor 1, B-cell stimulatory factor 1, BCGF 1, BCGF1, Binetrakin, BSF-1, BSF1, IGG1 induction factor, IL 4, IL-4, IL4, IL4_HUMAN, Il4e12, Interleukin 4, Interleukin 4 variant 2, Interleukin 4\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"FineTest","offers":[{"title":"25-153 \/ 14.1 kDa \/ 200ug","offer_id":47558619136280,"sku":"P4505","price":626.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5652\/1400\/products\/fine_test_logo_b4337ef7-c753-4ec5-b940-106a2a7482eb.jpg?v=1705804544","url":"https:\/\/danabiosci.com\/products\/new-product-596520","provider":"Dana Bioscience","version":"1.0","type":"link"}