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Merck

U0880

Sigma-Aldrich

尿酸酶 来源于念珠菌

recombinant, expressed in E. coli, lyophilized powder, ≥2 units/mg solid

别名:

尿酸盐:氧还原酶

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About This Item

CAS号:
MDL號碼:
分類程式碼代碼:
12352204
PubChem物質ID:
NACRES:
NA.54

重組細胞

expressed in E. coli

形狀

lyophilized powder

比活性

≥2 units/mg solid

分子量

35 kDa by SDS-PAGE

儲存溫度

−20°C

InChI

1S/C18H23N4O14P.H3N/c23-5-7-14(13(28)16(34-7)22-4-2-10(25)20-18(22)30)36-37(31,32)33-6-8-11(26)12(27)15(35-8)21-3-1-9(24)19-17(21)29;/h1-4,7-8,11-16,23,26-28H,5-6H2,(H,31,32)(H,19,24,29)(H,20,25,30);1H3

InChI 密鑰

VPXDHZMLJOJKOX-UHFFFAOYSA-N

一般說明

尿酸是一种同源四聚体蛋白,其活性位点位于头尾单体-二聚体界面。
尿酸缺乏小鼠会发展为尿酸肾病和尿崩症,这可以通过重组尿酸酶治疗来缓解。

應用

念珠菌属的尿囊已用于:
  • 消除血浆样品中的尿酸盐,并评估尿酸盐对血浆总抗氧化能力的贡献
  • 腹腔注射小鼠,以研究尿酸在纤维蛋白细胞外陷阱(ET)形成中的作用
  • 在铁还原/抗氧化能力(FRAP)测定中消除尿酸,以测量人血浆样品的总抗氧化能力;基于尿酸酶的生物传感器

生化/生理作用

尿酸参与嘌呤分解代谢。它催化高度不溶性尿酸转化为 5-羟基异尿酸盐。尿酸的积累会导致肝脏/肾脏损伤或慢性引起痛风。在小鼠中,编码尿酸酶的基因突变会导致尿酸突然升高。缺乏该基因的小鼠会出现高尿酸血症、高尿酸症和尿酸结晶性梗阻性肾病。

單位定義

在 25°C、pH 8.5 的条件下,1 个单位每分钟将把 1.0 μmol 尿酸氧化成尿囊素。

外觀

粉末;含柠檬酸盐和蔗糖

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


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