{"product_id":"choline-oxidase-enzyme-activity-tbp0009","title":"Choline oxidase, Enzyme Activity","description":"\u003cp\u003e\u003cspan style=\"font-size: 18px\"\u003e\u003cstrong\u003e\u003cu\u003ePreparation and Specification\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eAppearance:\u003c\/u\u003e Yellowish amorphous powder, lyophilized\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eActivity:\u003c\/u\u003e GradeⅢ　10U\/mg-solid or more (containing approx. 20% of stabilizers)\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eContaminant:\u003c\/u\u003e Catalase ≤1.0×10\u003csup\u003e2\u003c\/sup\u003e%\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eStabilizers:\u003c\/u\u003e EDTA, BSA, amino acids (glycine, sodium glutamate, etc.)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px\"\u003e\u003cstrong\u003e\u003cu\u003eProperties\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eStability:\u003c\/u\u003e Stable at −20℃ for at least one year\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eMolecular weight:\u003c\/u\u003e approx. 95,000\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eIsoelectric point:\u003c\/u\u003e 4.1±0.1\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eMichaelis constants:\u003c\/u\u003e 2.84×10\u003csup\u003e-3\u003c\/sup\u003eM (Choline), 5.33×10\u003csup\u003e-3\u003c\/sup\u003eM (Betaine aldehyde)\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eStructure:\u003c\/u\u003e One mol of FAD is covalently bound to mol of the enzyme\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eInhibitors:\u003c\/u\u003e p-Chloromercuribenzoate, Cu\u003csup\u003e＋＋\u003c\/sup\u003e, Co\u003csup\u003e＋＋\u003c\/sup\u003e, Hg\u003csup\u003e＋＋\u003c\/sup\u003e, Ag\u003csup\u003e＋\u003c\/sup\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eOptimum pH:\u003c\/u\u003e 8.0−8.5\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eOptimum temperature:\u003c\/u\u003e 40−45℃\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003epH Stability:\u003c\/u\u003e pH 7.0−9.0 (30℃, 2 hr)\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eThermal stability:\u003c\/u\u003e below 37℃ (pH 7.5, 10min)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px\"\u003e\u003cstrong\u003e\u003cu\u003eApplications\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis enzyme is useful for enzymatic determination of phospholipids when coupled with phospholipase D and for choline esterase-activity in clinical analysis.\u003c\/p\u003e\n\u003cp\u003e\u003c!--TBP0009-1000U TBP0009-5000U--\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 13px; font-weight: 700; text-transform: uppercase;\"\u003e\u003cstrong\u003eResearch use only.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/tribioscience.com\/wp-content\/uploads\/2024\/02\/TBP0009-Choline-oxidase.pdf\"\u003eDatasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/tribioscience.com\/wp-content\/uploads\/2024\/02\/TBP0009_Choline-oxidase-Safety-Data-Sheet-1.pdf\"\u003eMSDS (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TriBioScience","offers":[{"title":"1000U","offer_id":45986492874831,"sku":"TBP0009-1000U","price":0.0,"currency_code":"ILS","in_stock":true},{"title":"5000U","offer_id":45986492907599,"sku":"TBP0009-5000U","price":0.0,"currency_code":"ILS","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/0748\/5519\/files\/TBP0009.png?v=1782812525","url":"https:\/\/www.danyel.co.il\/products\/choline-oxidase-enzyme-activity-tbp0009","provider":"danyel biotech","version":"1.0","type":"link"}