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安全信息

A4503

Sigma-Aldrich

牛血清白蛋白 来源于牛血清

cold ethanol fraction, pH 5.2, ≥96%

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别名:
BSA, 牛白蛋白, 牛血清白蛋白
CAS号:
9048-46-8
EC 号:
232-936-2
MDL编号:
MFCD00130384
NACRES:
NA.27

生物来源

bovine

质量水平

300

检测方案

≥96%

形式

lyophilized powder

分子量

~66 kDa

纯化方式

cold ethanol fractionation

来源

USA origin

技术

ELISA: suitable
blood typing: suitable
microbiological culture: suitable

缺失

≤5%

pH值（酸碱度）

5.2

溶解性

water: soluble (40 mg/ml)

UniProt登记号

P02769

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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相关类别

一般描述

Bovine serum albumin is a model protein in various studies and is made up of 583 amino acids. It is a water-soluble protein with a molecular weight of 66.4kDa. Six α-helices form three homologous domains of BSA. Depending on pH, it undergoes reversible conformational isomerization. The native structure of the protein becomes reactive and flexible on heating.

应用

  • Bovine Serum Albumin has been used in solution prepared for the isolation of heart mitochondria.
  • It has been used in the cytotoxicity assay buffer.
  • It has been used for the induction of protein overload nephropathy in rats.

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

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。
通常称为 Cohn fraction V；本品采用改进的 Cohn 氏冷乙醇分级分离法制备。

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

法规信息

新产品

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ （Lot或Batch）字后找到。

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示例

T1503
货号
-
25G
包装规格/数量

其它示例：

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

输入内容 1.000309185)

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批号可以在产品标签上"批“ （Lot或Batch）字后面找到。

Aldrich 产品

  • 如果您查询到的批号为 TO09019TO 等，请输入去除前两位字母的批号：09019TO。

  • 如果您查询到的批号含有填充代码（例如05427ES-021），请输入去除填充代码-021的批号：05427ES。

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未找到您寻找的产品？

部分情况下，可能未在线提供COA。如果搜索不到COA，可在线索取。

索取COA

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. Is Product No. A4503, Albumin from bovine serum, tested and found to be protease-free?

    No. If you need such a grade, we would recommend Product No. A3059.

  4. Is Product No. A4503, Albumin from bovine serum, tested and found to be endotoxin-free?

    No. If you need such a grade, we would recommend Product No. A8806.

  5. Is Product No. A4503, Albumin from bovine serum, of US origin?

    It is typically from animals born and raised in the US. You may confirm this information by downloading the Certificate of Origin (CofO) for any lot of A4503 from our website. From the product detail page, simply type in the lot number in the box below the words Certificate of Origin, and click GO.

  6. Is Product No. A4053, Albumin from bovine serum, sterile? If not, how would recommend sterilizing it?

    This product is not necessarily sterile. Solutions of albumin cannot be autoclaved, so in order to sterilize it we would recommend that it be dissolved in the appropriate medium (water, saline or buffered saline), followed by sterile filtration through a low protein-binding membrane.

  7. Do you offer a kit for conjugating ligands to bovine serum albumin (Product A4503)?

    Yes. It is our Product No. MBK1.

  8. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  9. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Sensitization of tumor cells to NK cell-mediated killing by proteasome inhibition.
Hallett WH et al.
Journal of Immunology, 180, 163-163 (2008)
Isabella Marcomini et al.
Cell reports, 24(10), 2614-2628 (2018-09-06)
Multiple pathways regulate the repair of double-strand breaks (DSBs) to suppress potentially dangerous ectopic recombination. Both sequence and chromatin context are thought to influence pathway choice between non-homologous end-joining (NHEJ) and homology-driven recombination. To test the effect of repetitive sequences
Cytochrome C effect on respiration of heart mitochondria: influence of various factors.
Toleikis A et al.
Bioscience Reports, 25, 387-387 (2005)
Rapamycin worsens renal function and intratubular cast formation in protein overload nephropathy.
Coombes JD et al.
Kidney International, 68, 2599-2599 (2005)
Simona Ranallo et al.
Nature communications, 8, 15150-15150 (2017-05-10)
A wide range of molecular devices with nanoscale dimensions have been recently designed to perform a variety of functions in response to specific molecular inputs. Only limited examples, however, utilize antibodies as regulatory inputs. In response to this, here we
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本页将全面阐述血清白蛋白和其他重要细胞培养成分如何影响用于单克隆抗体等外源蛋白生物制造的无血清细胞培养系统的性能，并介绍白蛋白的体外化学和生物化学过程。本页面将介绍白蛋白在体外化学和生物化学领域的应用。这些深度知识可能也适用于离体和组织工程学应用。

Albumin in Cell Culture

This page segues to comprehensive insights on how serum albumin and other important cell culture components affect the performance of serum-free cell culture systems used for biomanufacturing heterologous proteins including monoclonal antibodies. The page introduces the in vitro chemistry and biochemistry of albumin. These insights may also be applied to ex vivo and tissue engineering applications.

实验方案

Nuclease S1 Enzymatic Assay

Spectrophotometric assay at 260 nm measures nuclease S1 activity, vital for nucleic acid research, with defined enzyme unit criteria.

Enzymatic Assay of L-Lactic Dehydrogenase (EC 1.1.1.27)

This procedure applies to all products from heart muscle that have a specification for L-Lactic Dehydrogenase activity.

Enzymatic Assay of β-Glucuronidase (EC 3.2.1.31) from E. coli

Objective: To standardize a procedure for the enzymatic assay of β-Glucuronidase.

Enzymatic Assay of Lipase Type XIII from Pseudomonas sp. Using a Coupled Enzyme System of Glycerol Kinase and Glycerophosphate Oxidase (EC 3.1.1.3)

Enzymatic assay of lipase type XIII from Pseudomonas sp. using a coupled enzyme system of glycerol kinase and glycerophosphate oxidase (EC 3.1.1.3)

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相关内容

Albumin from Bovine Serum Frequently Asked Questions (FAQs)

Learn about bovine serum albumin (BSA) structure, molecular weight, function, solubility, how BSA is made, purification methods, applications and purchasing.

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