性能描述

Biochem/physiol Actions
α-Casein can be an immunogen in young children, and anti-α-casein antibodies have strong cross-reactivity with insulin. This effect can explain the uncommon insulin autoimmunity, but it does not appear to progress to Type I diabetes.

溶解：This product can be suspended in water (50 mg/ml),yielding a turbid, faint yellow solution.

Casein is a phosphoprotein found in milk. This protein has numerous experimental applications including use as a blocking agent in immunochemistry, recovery of enzyme activity from SDS extracted samples, and as a
substrate for protease and kinase assays. The major casein subunits may be distinguished by electrophoresis and are designated as a-, b-, g-, and k-caseins in order of decreasing mobility at pH 7.0.The approximate casein composition of milk is (g/L):a-s1 (12-15); a-s2 (3-4); b (9-11); and k (2-4).
The casein subunits vary primarily in molecular weight,isoelectric point, and level of phosphorylation. The following table lists these differences.

Application
Casein sodium salt from bovine milk is a phosphoprotein. There are four main types of Casein which make up approximately 80% of the total protein in bovine milk: α-s1 Casein, α-s2 Casein, β-Casein, and κ-Casein. Casein is proposed to be the main protective constituent in milk.