{"product_id":"abm221973","title":"Recombinant Human IFN- Alpha 1a protein","description":"\u003ch3\u003eBackground\u003c\/h3\u003e\u003cp\u003eIFN-αs are proteins secreted by leukocyte. They are mainly involved in innate immune response against viral infection. The IFN-α family has 13 subtypes and 23 different variants. 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-alpha subtypes differ in their sequences at only one or two positions. Naturally occurring variants also include proteins truncated by 10 amino acids at the carboxy-terminal end.\u003c\/p\u003e\u003cdl\u003e\n\u003cdt\u003eExpression system\u003c\/dt\u003e\n\u003cdd\u003eEscherichia coli.\u003c\/dd\u003e\n\u003cdt\u003ePurity\u003c\/dt\u003e\n\u003cdd\u003e\u0026gt; 97 % by SDS-PAGE and HPLC analyses.\u003c\/dd\u003e\n\u003cdt\u003eMolecular weight\u003c\/dt\u003e\n\u003cdd\u003eApproximately 19.5 kDa, a single non-glycosylated polypeptide chain containing 167 amino acids.\u003c\/dd\u003e\n\u003cdt\u003eEndotoxin\u003c\/dt\u003e\n\u003cdd\u003eLess than 0.1 EU\/μg of rHuIFN-α1a as determined by LAL method.\u003c\/dd\u003e\n\u003cdt\u003eForm\u003c\/dt\u003e\n\u003cdd\u003eSterile Filtered White lyophilized (freeze-dried) powder. Formulation Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4, containing 3 % Mannitol, 5 % Trehalose, 0.05 % Tween-80.\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cp\u003e\u003cem\u003ePackaging image shown for reference. Select a size from the available options.\u003c\/em\u003e\u003c\/p\u003e","brand":"BT LAB","offers":[{"title":"100 ug","offer_id":57661749920084,"sku":"ABM221973","price":317.0,"currency_code":"GBP","in_stock":true},{"title":"20 ug","offer_id":57661749952852,"sku":"ABM221974","price":113.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1040\/1782\/2036\/files\/btlab-0fd1f6372ffcfb473d60291b19ad3a3c1ba873bf34f64149b8c025ca5826680b.jpg?v=1792159240","url":"https:\/\/www.abmium.com\/es\/products\/abm221973","provider":"ABMIUM","version":"1.0","type":"link"}