Albumin belongs to the four-member albumin superfamily. It is a major protein in the circulating blood. Albumin has a helical structure with three domains that form a heart-like shape.

Bovine Serum Albumin solution has been used:

• to block protein-coated well plates in enzyme-linked immunosorbent assay (ELISA) for immunoreactivity and cross-reactivity studies in the production of monoclonal antibodies (mAbs)
• to prepare primary antibody solution for peroxidases staining
• as a supplement for in vitro cultivation of Borrelia strains

Bovine serum albumin (BSA) serves as a protein supplement for cell culture media. BSA acts as a transport carrier for drugs, and it is commonly used to study the protein-drug interactions. Furthermore, it is known for its ability to interact with several aromatic and hydrophobic molecules of the bloodstream.