Merck, B2064-100G, Bovine Serum Albumin

Bovine serum albumin (BSA) is made up of 583 amino acids, with no carbohydrates. 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 BSA becomes reactive and flexible on heating. BSA acts as a model protein in various studies, such as immunodiagnostic procedures, cell culture media and clinical chemistry. It is also relevant in foods containing bovine milk or meat. Appl- Bovine serum albumin has been used as a supplement of phosphate buffered saline (PBS) to store brain tissue sections. It has also been used as a blocking agent for cells for immunofluorescence analysis.