{"product_id":"recombinant-e-coli-lactose-operon-repressor-laci-protein-his-tag","title":"Recombinant E.coli Lactose Operon Repressor\/LacI Protein (His Tag)","description":"\u003cp\u003e\u003cb\u003eSize\u003c\/b\u003e:100μg\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStorage\u003c\/b\u003e:Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at \u0026lt; -20℃ for 3 months.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eShipping\u003c\/b\u003e:This product is provided as liquid. It is shipped at frozen temperature with blue ice\/gel packs. Upon receipt, store it immediately at \u0026lt; - 20°C.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eExp date\u003c\/b\u003e:12 months\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCategory ID_II\u003c\/b\u003e:Recombinant Proteins\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCategory ID_III\u003c\/b\u003e:Others\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAbbreviation\u003c\/b\u003e:LacI\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Synonym\u003c\/b\u003e:LacI;Lactose operon repressor\u003c\/p\u003e\u003cp\u003e\u003cb\u003eResearch Areas\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConjugation\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Species\u003c\/b\u003e:E.coli\u003c\/p\u003e\u003cp\u003e\u003cb\u003eExpression Host\u003c\/b\u003e:E.coli\u003c\/p\u003e\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFusion tag\u003c\/b\u003e:C-His\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUNIProt ID\u003c\/b\u003e:P03023\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAccession\u003c\/b\u003e:P03023\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBackground\u003c\/b\u003e:Lactose operon repressor (LacI) contains one HTH lacI-type DNA-binding domain, functions as a homotetramer. Lactose operon repressor as a repressor of the lactose operon, which also as an inducer, binds allolactose. If remove residues 1-59, resulting the loss of DNA-binding activity but retains tetrameric structure and inducer-binding activity. If delete residues 340-360, resulting the loss of tetramer formation, but retains dimer formation, inducer-binding activity, and DNA-binding activity.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConcentration\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eActivity\u003c\/b\u003e:Not validated for activity\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSequence\u003c\/b\u003e:Met1-Gln360\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePurity\u003c\/b\u003e: \u0026gt; 95% as determined by reducing SDS-PAGE.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFormulation\u003c\/b\u003e:Lyophilized from a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eReconstitution\u003c\/b\u003e:It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg\/mL. Concentration is measured by UV-Vis.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eEndotoxin\u003c\/b\u003e:\u0026lt; 10 EU\/mg of the protein as determined by the LAL method.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eCalculated MW\u003c\/b\u003e:39.4 kDa\u003c\/p\u003e\u003cp\u003e\u003cb\u003eObservedMW\u003c\/b\u003e:40 kDa\u003c\/p\u003e","brand":"GeneBio Systems","offers":[{"title":"Default Title","offer_id":48644144431204,"sku":"PDEO100019","price":724.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/8588\/9636\/files\/no_image_default_image-jpeg_6f93bf55-6734-452d-ae46-611ff2a36af0.jpg?v=1782615223","url":"https:\/\/www.genebiosystems.com\/en-gb\/products\/recombinant-e-coli-lactose-operon-repressor-laci-protein-his-tag","provider":"GeneBio ","version":"1.0","type":"link"}