Skip to Content
Merck
All Photos(2)

Key Documents

L7880

Sigma-Aldrich

β-Lactoglobulin A from bovine milk

≥90% (PAGE)

Sign Into View Organizational & Contract Pricing


About This Item

CAS Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.61

biological source

bovine milk

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)

Looking for similar products? Visit Product Comparison Guide

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.
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.

Application

β-Lactoglobulin A from bovine milk has been used:
  • as a calibrant for the calibration of the TriWave device
  • as a standard in the detection and quantification of β-lactoglobulin in bovine milk by reverse-phase high performance liquid chromatography (HPLC)
  • in the purification and molecular weight measurement of protease samples

β-Lactoglobulin was used in the identification of the genetic variants of κ-casein in milk by isoelectric focusing electrophoresis.

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.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

An Acid Protease Produced by Monilinia fructigena in vitro and in Infected Apple Fruits, and its Possible Role in Pathogenesis
Hislop EC, et al.
Microbiology, 128(4), 799-807 (1982)
Bioactive milk proteins, peptides and lipids and other functional components derived from milk and bovine colostrum
Functional Foods, 471-511 (2011)
Laurette Tavel et al.
Journal of agricultural and food chemistry, 56(21), 10208-10217 (2008-10-22)
Interactions between beta-lactoglobulin (BLG) in its monomeric form and a wide range of aroma compounds were investigated by Fourier transform infrared (FT-IR) and 2D nuclear magnetic resonance (NMR) spectroscopies. A screening of the ligands was carried out by FT-IR through
Jeremy Pronchik et al.
The journal of physical chemistry. B, 112(36), 11422-11434 (2008-08-19)
We use time-dependent fluorescence Stokes shift (TDFSS) information to study the fluctuation rates of the lipocalin, beta-lactoglobulin A in the vicinity of an encapsulated coumarin 153 molecule. The system has three unique dielectric environments in which the fluorophore binds. We
DNA Binding and Phosphorylation Regulate the Core Structure of the NF-kappaB p50 Transcription Factor
Vonderach M, et al.
Journal of the American Society For Mass Spectrometry, 30(1), 128-138 (2019)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service