{"product_id":"ept205","title":"Recombinant Human IFN alpha2b","description":"\u003cstrong\u003eDescription:\u003c\/strong\u003e Recombinant Human Interferon Alpha-2b is produced by our E.coli expression system and the target gene encoding Cys24-Glu188(Lys46Arg) is expressed.\u003cbr\u003e\u003cstrong\u003eAccession:\u003c\/strong\u003e P01563\u003cbr\u003e\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 19.4 KDa\u003cbr\u003e\u003cstrong\u003eApparent molecular weight:\u003c\/strong\u003e 17 KDa, reducing conditions\u003cbr\u003e\u003cstrong\u003eOther names:\u003c\/strong\u003e Interferon Alpha-2; IFN-Alpha-2; Interferon Alpha-A; LeIF A; IFNA2\u003cbr\u003e\u003cstrong\u003eStorage condition:\u003c\/strong\u003e Lyophilized protein should be stored at \u0026lt; -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at \u0026lt; -20°C for 3 months.\u003cbr\u003e\u003cstrong\u003ePurity:\u003c\/strong\u003e Greater than 95% as determined by reducing SDS-PAGE.\u003cbr\u003e\u003cstrong\u003eEndotoxin:\u003c\/strong\u003e Less than 0.1 ng\/µg (1 EU\/µg) as determined by LAL test.\u003cbr\u003e\u003cstrong\u003eBiological activity:\u003c\/strong\u003e Measured in antiviral assay using A549 human lung cancer cells infected with vesicular stomatitisvirus (VSV) The ED50 for this effect is 5 ng\/mL.\u003cbr\u003e\u003cstrong\u003eRedissolve:\u003c\/strong\u003e Always centrifuge tubes before opening.Do not mix by vortex or pipetting.\nIt is not recommended to reconstitute to a concentration less than 100μg\/ml.\nDissolve the lyophilized protein in distilled water.\nPlease aliquot the reconstituted solution to minimize freeze-thaw cycles. \u003cbr\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Lyophilized protein should be stored at \u0026lt; -20°C, though stable at room temperature for 3 weeks.\nReconstituted protein solution can be stored at 4-7°C for 2-7 days.\nAliquots of reconstituted samples are stable at \u0026lt; -20°C for 3 months.\u003cbr\u003e\u003cstrong\u003eDelivery condition:\u003c\/strong\u003e The product is shipped at ambient temperature.\nUpon receipt, store it immediately at the temperature listed below.\u003cbr\u003e\u003cstrong\u003eBackground:\u003c\/strong\u003e At least 23 different variants of IFN-α are known. The individual proteins have molecular masses between 19-26 kDa and consist of proteins with lengths of 156-166 and 172 amino acids. All IFN-α subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-α subtypes differ in their sequences by only one or two positions. Naturally occurring variants also include proteins that are truncated by 10 amino acids at the carboxyl-terminal end.","brand":"ELK Biotechnology","offers":[{"title":"10ug","offer_id":50413881327896,"sku":"EPT205","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5652\/1400\/files\/ELK_0c5c4b52-176f-41e7-a5e0-e1244b4fd341.jpg?v=1751164061","url":"https:\/\/danabiosci.com\/products\/ept205","provider":"Dana Bioscience","version":"1.0","type":"link"}