BSA molecular weight means bovine serum albumin.

Bovine serum albumin (BSA) is a globulin in bovine serum, containing 607 amino acid residues, with a molecular weight of 66.446KDa and an isoelectric point of 4.7. Bovine serum albumin is widely used in biochemical experiments.

Protein is the main component of bovine serum. In addition to proteins that can carry metal ions, fatty acids and hormones themselves, they mainly include albumin and globulin.

Fibronectin cells promote cell adhesion; α2 macroglobulin inhibits the action of trypsin; fetal calf serum contains fetuin to promote cell adhesion; transferrin can bind iron ions and reduce its toxicity and Cell Utilization.

Polypeptide, platelet growth factor can promote cell division, is one of the main members of the peptide family, and is the main cell proliferation factor; fibroblast growth factor, epidermal cell growth factor, nerve cell growth factor etc. Although the content in serum is very small, it also has a certain effect on cell growth.

The simple protein in bovine serum is the main component of blood (38g/1000ml), with a molecular weight of 68kD. Isoelectric point 4.8. The nitrogen content is 16% and the sugar content is 0.08%. Contains only hexose and hexosamine, and the fat content is only 0.2%.

Albumin is composed of 581 amino acid residues, of which 35 cysteine ??residues form 17 disulfide bonds, and there is a free sulfhydryl group at position 34 of the peptide chain.

Albumin can combine with a variety of cations, anions and other small molecule substances. Albumin in blood mainly plays the role of maintaining osmotic pressure, pH buffering, carrier and nutrition.