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biological source
bovine milk
Quality Level
Assay
≥90% (PAGE)
form
powder
mol wt
18,363 Da by calculation
technique(s)
HPLC: suitable
UniProt accession no.
storage temp.
2-8°C
Gene Information
bovine ... LGB(280838)
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General description
A member of the lipocalin family, βLg is a small protein of 162 amino acids with a molecular mass of ∼18,400 Da, featuring an eight-stranded β-barrel (strands A-H) succeeded by a three-turn a-helix and a final β-strand (strand I) that forms part of the dimerization interface.[1]
Milk from dairy cows contains the protein β-lactoglobulin (BLG). It naturally occurs in a number of genetic variants, and the most prevalent bovine variants are known as BLG A and BLG B.[2]
Application
β-Lactoglobulin A from bovine milk has been used:
- as a calibrant for the calibration of the TriWave device[3]
- as a standard in the detection and quantification of β-lactoglobulin in bovine milk by reverse-phase high performance liquid chromatography (HPLC)[4]
- in the purification and molecular weight measurement of protease samples[5]
β-Lactoglobulin was used in the identification of the genetic variants of κ-casein in milk by isoelectric focusing electrophoresis.[6]
Biochem/physiol Actions
β-Lactoglobulin (β-lg) possesses heat-set gelation properties. It also exhibits antiviral, anticarcinogenic and hypocholesterolemic effects. β-lg can bind to retinol and long-chain fatty acids. It may participate in the absorption and metabolism of fatty acids.[7]
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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