推荐产品
生物源
bovine
品質等級
化驗
≥99% (agarose gel electrophoresis)
形狀
lyophilized powder
分子量
~66 kDa
純化經由
cold ethanol and heatshock fractionation
包裝
poly bottle of
來源
USA origin
free fatty acid content
≤0.01%
技術
enzyme immunoassay: suitable
雜質
essentially globulin free
≤0.01% Fatty acids
pH值
7
溶解度
water: soluble (40 mg/ml)
UniProt登錄號
儲存溫度
2-8°C
基因資訊
bovine ... ALB(280717)
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一般說明
Bovine serum albumin (BSA) is a plasma protein with a calculated molecular weight (MW) of 66,430 Daltons (Da). The major protein in bovine serum, BSA assists in regulation of blood colloidal osmotic pressure. BSA is used in different applications such as immunochemistry, protein quantitation, and cell culture.
This BSA product is specifically tested for the following properties:
This BSA product is specifically tested for the following properties:
- very low FA content / essentially fatty acid free
- low globulin content / essentially globulin free
應用
BSA is a known fatty acid (FA) carrier. Thus when BSA is used specifically in cell culture, control over specific FA′s used to culture cell lines is important, because different cell lines can be variably sensitive to particular fatty acids. Fatty acid-free BSA thus is useful for cell culture work, where the specific FA content must be stringently controlled, so that researchers can control the specific fatty acids needed for their particular cell lines. Fatty acid-free albumin also allows for optimal and maximum binding sites for the specific fatty acids that researchers wish to use in their particular cell culture experiments. Use of FA-free BSA also addresses concerns about endogenous FA′s potentially in non-FA-free BSA.
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。
特點和優勢
- Essentially fatty acid-free
- Essentially globulin-free
準備報告
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。
采用热休克和乙醇分级分离相结合的方法进行纯化
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)
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