牛血清白蛋白来源于牛血清 *Sigma货号：B6917-25

一般描述

牛血清白蛋白（BSA）是牛肝脏产生的一种血浆蛋白，具有球状、非糖基化的α-螺旋结构
它由带有583个氨基酸残基和17个半胱氨酸残基的单个多肽链组成，这些残基形成交联的二硫键，从而使结构保持稳定
BSA蛋白含有三种结构不同的结构域（I，II，III），每个结构域都含有两个心形结构的亚结构域（A和B）
[1] 应用
Bovine serum albumin (BSA) has been used for:
As a component of phosphate buffered saline (PBS), it is used to dissolve tumor factor alpha (TNF alpha) added as a supplement to the culture medium As a blocker used to reduce non-specific binding in albumin sensor analysis As a blocker in immunofluorescence (IF) assays As a protein standard in Bradford assay

Biochemical/physiological effects

Some conformations and primary sequence epitopes of BSA are suspected allergens in human allergies to beef and milk Bovine serum albumin (BSA) is a multifunctional protein commonly used as a supplement to cell and tissue culture media. It helps dissolve lipids and stabilize other proteins. BSA is also a carrier for small molecules such as steroids, fatty acids, and thyroid hormones. It can be used as a standard protein for immunochemical testing, to determine protein concentration in solutions, and for calibration studies