{"product_id":"recombinant-human-ifn-alpha2b-ept205","title":"Recombinant Human IFN alpha2b - EPT205","description":"\u003cp\u003eRecombinant Human IFN alpha2b\u003c\/p\u003e\n\n\u003cp\u003eSize: 10ug\u003c\/p\u003e\n\n\u003cp\u003eCatalogue Number: EPT205-10\u003c\/p\u003e\n\n\u003cp\u003eCitations, Manuals and MSDS Available upon request.\u003c\/p\u003e\n\n\u003cp\u003eBackground: 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.\u003c\/p\u003e\n\n\u003cp\u003eAlternate Names: Interferon Alpha-2; IFN-Alpha-2; Interferon Alpha-A; LeIF A; IFNA2\u003c\/p\u003e\n\n\u003cp\u003eDescription: Recombinant Human Interferon Alpha-2b is produced by our E.coli expression system and the target gene encoding Cys24-Glu188 (Lys46Arg) is expressed.\u003c\/p\u003e\n\n\u003cp\u003eAccession: P01563\u003c\/p\u003e\n\n\u003cp\u003eMolecular Weight: 19.4 KDa\u003c\/p\u003e\n\n\u003cp\u003eApparent Molecular Weight: 17 KDa, reducing conditions\u003c\/p\u003e\n\n\u003cp\u003eStorage Condition: 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.\u003c\/p\u003e\n\n\u003cp\u003ePurity: Greater than 95% as determined by reducing SDS-PAGE.\u003c\/p\u003e\n\n\u003cp\u003eEndotoxin: Less than 0.1 ng\/µg (1 EU\/µg) as determined by LAL test.\u003c\/p\u003e\n\n\u003cp\u003eBiological Activity: Measured in antiviral assay using A549 human lung cancer cells infected with vesicular stomatitisvirus (VSV) The ED50 for this effect is 5 ng\/mL.\u003c\/p\u003e\n\n\u003cp\u003eRedissolve: Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg\/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles. \u003c\/p\u003e\n\n\u003cp\u003eDelivery Condition: The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.\u003c\/p\u003e\n\n\u003cp\u003eStorage: 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.\u003c\/p\u003e\n\n\u003cp\u003eResearch Use Only\u003c\/p\u003e","brand":"ELK Bio","offers":[{"title":"Default Title","offer_id":43211044487347,"sku":"EPT205-10","price":138.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0305\/9482\/6376\/files\/download_360x_2c2055d9-f667-4614-a78e-68c3153b3616.png?v=1767117898","url":"https:\/\/afsbio.com\/products\/recombinant-human-ifn-alpha2b-ept205","provider":"AFSBio Inc.","version":"1.0","type":"link"}