This product is soluble in water at a concentration of 10 mg/mL. It can also be dissolved in a buffer according to specific experimental references, such as 50 mM potassium phosphate. The stability of the solution has not been tested.
推薦產品
生物源
microbial
形狀
lyophilized powder
比活性
≥7 units/mg solid
分子量
~160 kDa
技術
inhibition assay: suitable
顏色
brown
最適pH
7.5-8.0
運輸包裝
wet ice
儲存溫度
−20°C
基因資訊
Escherichia coli K12 ... xdhA(947116) , xdhB(947205) , xdhC(945148)
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一般說明
生化／生理作用
还含有蛋白水解活性。
物理性質
抑制剂：还原剂，Hg++，Ag+，MIA
最佳pH: 7.5 - 8.0
最佳温度：65oC
pH稳定性：pH 6.5 - 9.0 (25oC, 15hr)
温度稳定性：低于55oC (pH 8.0, 30min)
最佳pH: 7.5 - 8.0
最佳温度：65oC
pH稳定性：pH 6.5 - 9.0 (25oC, 15hr)
温度稳定性：低于55oC (pH 8.0, 30min)
單位定義
在25 °C pH 7.5条件下，一个单位可在每分钟内将1.0 μ摩尔的黄嘌吟转化为尿酸。在次黄嘌呤作为底物时可获得约50%的活性。
外觀
含有BSA和谷氨酸钠作为稳定剂的冻干粉末
儲存和穩定性
密闭。干燥。上锁保存或放置在只有经过授权或有资质的
人员才能进入的区域。
人员才能进入的区域。
抑制劑
訊號詞
Danger
危險聲明
危險分類
Resp. Sens. 1
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
從最近期的版本中選擇一個：
分析證明 (COA)
Lot/Batch Number
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條款
The appearance of uric acid is measured at 293nm by spectrophotometry.
相關內容
The appearance of uric acid is measured at 293nm by spectrophotometry.
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Good morning, I purchased xanthine oxidase X2252-25UN for quantifying SOD enzymatic activity. Which buffer should I use to solubilize the enzyme? After solubilization, how should I store the resulting solution?
1 answer-
Helpful?
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Guten Tag, in welchem Lösungsmittel und bis zu welcher Konzentration ist das Enzym gut löslich? Kann Natrium Phosphat Puffer verwendet werden? Danke.
1 answer-
For assay purposes, this product is prepared in 50 mM Potassium Phosphate Buffer, pH 7.5 at 25°C. The material is lyophilized from a solution containing BSA and sodium glutamate. While the solubility has not specifically been tested in sodium phosphate buffer, it is expected to be suitable. Please see the link below to review the assay protocol for this item:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/184/938/x2252enz.pdfHelpful?
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