Bovine A1 Beta Casein, Native Protein

ZZZZ_Status (Active, Disc) : Active

AA_Supplier Name : Biosensis

Alternative_Name (Other Names) :

Beta Casein; CSN2

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(Antibody only) :

Application_Details :

A1 beta casein can be used in ELISA and Western blotting (100 ng or less) as a standard. Other applications not yet tested.

Background_Info : The protein named Casein is the largest group of proteins in mammalian milk, making up about > 80% of total protein content. Different mammals have different amounts of caseins in their milks and not all casein proteins are the same.

According to published literature, (PMID: 15453478), multiple forms of casein proteins exist in cow’s milk, with beta-casein being one of the most predominant forms. Beta casein in domestic cows at lesat, has two alleles or isoforms. Beta A1 and Beta A2.

A1 beta-casein is found in milk from breeds of cows that originated in northern Europe. These breeds include Holstein, Friesian, Ayrshire, and British Shorthorn.
A2 beta-casein. is found in milk breeds that originated in the Channel Islands US and southern France. These include Guernsey, Jersey, Charolais, and Limousin cows (PMID: 15867940, PMID: 15453478). .
Traditionally, store bought regular milk contains both A1 and A2 beta-casein proteins, but pure A2 milk can be obtained that originates only from A2 cows.

Some studies suggest that there could be some sort of a link between the A1 beta-casein and immunological dieseases such as type-1 diabetes and others and work is underway to understand how beta casein, both A1 and A2 may or may not contribute to human illness as well a health.

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Datasheet_Link : http://www.biosensis.com/pdf_datasheet.php?products_id=1667

Description (Long Description) : 

Bovine milk may contain two types of beta-casein protein, A2 or A1, which differ by a single-point mutation at amino acid position 82 (P82/H82). Recent studies have shown that milk containing the A1 beta casein protein can contribute to issues including gastrointestinal discomfort after ingestion. There is some evidence of a link between ingestion of A1 beta casein protein and the development of Type 1 diabetes. PE-1831-20 is A1 beta casein protein that is in its native form and purified from bovine A1/A1 commercial cow’s milk collected from cows that are certified BSE and disease free by the manufacture of the milk.

Expiry_Date : 

12 months from purchase if stored at -20C.

Format (Form) : 

Liquid. Protein is provided as 50 uL aliquot at 0.4 mg/mL in 10 mM borate buffer, pH 8.5, containing 20% glycerol. Does not contain preservatives. Use sterile methods.

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