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Merck

A9647

Sigma-Aldrich

牛血清白蛋白 来源于牛血清

heat shock fraction, pH 7, ≥98%

别名:

BSA, 牛白蛋白, 牛血清白蛋白

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About This Item

CAS号:
EC 号:
MDL编号:
UNSPSC代码:
12352202
NACRES:
NA.27

生物来源

bovine

方案

≥98%

表单

lyophilized powder

分子量

~66 kDa

纯化方式

heat shock fractionation

来源

USA origin

技术

immunocytochemistry: suitable

杂质

≤5.0% Loss on drying

缺失

≤5%

pH值(酸碱度)

7

溶解性

water: soluble (40 mg/ml)

UniProt登记号

异质活性

BT virus, none detected
VSV virus, none detected

储存温度

2-8°C

基因信息

bovine ... ALB(280717)

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一般描述

牛血清白蛋白(BSA)是一种蛋白质,最关键的生物学作用是调节血液的胶体渗透压。BSA广泛用于各种研究和应用。BSA由583个氨基酸组成, 是一种水溶性蛋白质,分子量为66,430 Da。六个α-螺旋形成了BSA的三个同源结构域。它可依赖于pH进行可逆的构象异构化。蛋白的天然结构在加热时会变得具有反应性和灵活性。

应用

牛血清白蛋白(BSA)可用于多种应用,例如以下应用:
  • BSA可用于细胞培养,例如,作为少突胶质细胞培养基的补充剂。
  • 在免疫组化实验中,BSA可稀释一抗。
  • BSA可作为Bradford法测蛋白质浓度的标准品。
  • 在免疫荧光研究中,BSA可用在封闭和透化缓冲液中。

生化/生理作用

BSA的某些构象和初级序列表位是人类对牛肉和牛奶过敏中的可疑过敏原。

制备说明

热激分级分离法制取
血清白蛋白可能也会被称为Fraction V。该命名惯例取自使用冷乙醇沉淀对血清蛋白进行分级的原始Cohn法。 血清白蛋白可在采用Cohn′法的第五乙醇分级中发现。 从此,有些人便开始使用“Fraction V”这一术语来描述血清白蛋白,无论使用的是什么制备方法。 也有人在使用该术语来描述通过乙醇分级方法而纯化得到血清白蛋白,而这种方法是相对于原始的Cohn法一直在得到高度的改良。Sigma-Aldrich生产和分销从各种主要方法纯化得到的血清白蛋白,包括真正的Cohn分级法、改良的乙醇分级方法、热休克和色谱法。 更多的纯化步骤包括结晶或木炭过滤。

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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商品

This solution is used as a substrate for detecting horseradish-peroxidase conjugates in Western blotting.

Experience effective immobilization of protein A on wide-pore epoxy-modified silica monoliths for mAb separation, showcasing the efficiency of Chromolith® WP 300 columns in achieving faster and highly reproducible biomolecule separations.

Experience effective immobilization of protein A on wide-pore epoxy-modified silica monoliths for mAb separation, showcasing the efficiency of Chromolith® WP 300 columns in achieving faster and highly reproducible biomolecule separations.

Experience effective immobilization of protein A on wide-pore epoxy-modified silica monoliths for mAb separation, showcasing the efficiency of Chromolith® WP 300 columns in achieving faster and highly reproducible biomolecule separations.

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实验方案

To measure alcohol dehydrogenase activity, this assay uses β-nicotinamide adenine dinucleotide phosphate and a continuous spectrophotometric rate determination at 340 nm.

在测定醇脱氢酶活性时,该测定使用β-烟酰胺腺嘌呤二核苷酸磷酸和在340nm处的连续分光光度法进行测定。

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

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