计算溶液所需的质量、体积或浓度。
为什么选择此级别
，适用于对基线干扰要求严格的色谱和分析工作流程。
储存与运输
2-8°C储存,避光,禁止冷冻。低温运输,禁止冷冻 。请查阅批次 COA 获取详细规格。
质量文档
SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。
文献证明
在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
概述
Product Description
Acetyl esterase (sialate-O-acetylesterase) is a recombinant protein from Tannerella forsythia, ATCC 43037 strain, expressed in Escherichia coli. The enzyme removes acetyl groups attached via an O- group, mainly 9-, 8- and 7-. It can be used for monitoring of diacetylation of sialic acids on products such as erythropoietin (EPO).
The Zyme Acetyl Esterase Kit removes 9-, 8- and 7-O-acetyl groups from released sialic acids, released glycans or glycoproteins. It is commonly used for the characterization of highly-sialylated biotherapeutics such as EPO, FSH and blood clotting factors.
Molecular Weight
76.3 kD
Contents
Acetyl esterase – PBS pH7.5 buffer containing 10 mM Tris-HCl
Reaction Buffer – 500 mM sodium acetate pH5.5
Number of Samples
Sufficient for up to 50 samples.
Amount of Sample
Up to 10 µg glycoprotein, up to 2.5 µg released glycans and up to 1 µg free sialic acid per digestion.
Suitable Samples
Acetyl esterase (sialate-O-acetylesterase) can act upon complex glycoprotein samples, such as erythropoietin (EPO), bovine submaxillary mucin and oral epithelial cell-bound glycans, and on N- and O-glycans released from a glycoprotein. Either fluorescently labelled or unlabelled glycans are suitable. It can also be used on released sialic acids.
Unit Definition
One unit (U) of acetyl esterase is defined as the amount of enzyme required to produce 300 μmole of 4-nitrophenol and acetate in 1 minute at 30°C in a buffer containing 50 mM Tris-HCl, 140 mM NaCl, pH 8.5, from 4-nitrophenyl acetate, a chromogenic esterase substrate
Storage
Protect from sources of heat and light. When stored correctly, the enzyme should be stable for 24 months from date of purchase. Exposure to ambient temperatures (20 – 26°C) over 3 days does not result in a reduction of enzymatic activity.
Shipping
The product should be shipped at 4°C.
Handling
Ensure that any glass, plastic ware or solvents used with this item are free of environmental carbohydrates. Use powder-free gloves for all sample handling procedures and avoid contamination with environmental carbohydrate.
Safety
Please read the Safety Data Sheets (SDSs) for all chemicals used. All processes involving labelling reagents should be performed using appropriate personal safety protection – safety glasses, chemically resistant gloves (e.g. nitrile), lab coat, and when appropriate, in a laboratory fume cupboard.
For research use only. Not for human or drug use
Application
Acetyl esterase (sialate-O-acetylesterase) can be used to remove 9-, 8- and 7-O-acetyl groups from released sialic acids, released glycans or glycoproteins.
规格
别名
唾液酸O-乙酰酯酶试剂盒
英文名称
Sialate O-acetylesterase kit
储存与运输
储存条件
2-8°C储存,避光,禁止冷冻
运输条件
低温运输,禁止冷冻
技术文档
高级数据
质检证书（CoA,COO,BSE/TSE 和分析图谱)
C of A & Other Certificates(BSE/TSE, COO):
输入批号以搜索分析图谱:
溶液计算器
常见问题
本产品应如何储存？
请于2–8 °C、避光条件下保存。请勿冷冻。冷冻可能对本品造成不可逆的损坏。
本产品如何运输？
本产品采用湿冰冷藏运输。收货后请立即拆包，并按上述储存条件保存。
如何获取批次专用COA？
每个订单都会随附分析证书（COA），您也可以从账户订单历史中下载。如需订购前的COA，请联系您的客户代表，或使用PDP上的"申请COA"按钮——我们将提供代表性批次的COA。
产品仅提供给经过验证的企业、机构和合格的专业人员用于研发。不适用于人类、动物、诊断或治疗。
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