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L0130

Sigma-Aldrich

β-Lactoglobulin from bovine milk

≥90% (PAGE), lyophilized powder

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Synonym(s):
β-LG, Bos d 5, beta-LG
CAS Number:
EC Number:
MDL number:
NACRES:
NA.61

biological source

bovine milk

Quality Level

assay

≥90% (PAGE)

form

lyophilized powder

UniProt accession no.

storage temp.

2-8°C

Gene Information

bovine ... LGB(280838)

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This Item
L3908L5137L7880
β-Lactoglobulin from bovine milk ≥90% (PAGE), lyophilized powder

L0130

β-Lactoglobulin from bovine milk

β-Lactoglobulin from bovine milk ≥90% (PAGE), lyophilized powder

L3908

β-Lactoglobulin from bovine milk

Sigma-Aldrich

L5137

β-Lactoglobulin A from bovine milk

β-Lactoglobulin A from bovine milk ≥90% (PAGE)

L7880

β-Lactoglobulin A from bovine milk

biological source

bovine milk

biological source

bovine milk

biological source

bovine milk

biological source

bovine milk

form

lyophilized powder

form

lyophilized powder

form

powder

form

powder

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

2-8°C

UniProt accession no.

P02754

UniProt accession no.

P02754

UniProt accession no.

P02754

UniProt accession no.

P02754

Gene Information

bovine ... LGB(280838)

Gene Information

bovine ... LGB(280838)

Gene Information

bovine ... LGB(280838)

Gene Information

bovine ... LGB(280838)

General description

A member of the lipocalin family, β-Lactoglobulin (βLg) is a small protein of 162 amino acids with a molecular mass of ∼18,400 Da. It features 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 BLG A and BLG B.

Application

β-Lactoglobulin from bovine milk was used to test the allergen-responsive CD4+ CD25+ regulatory T cells in children who have outgrown cow′s milk allergy. It is also used to test the competitive displacement of β-lactoglobulin by Tween 20 from oil-water and air-water interfaces.

Other Notes

Contains β-lactoglobulins A and B which can be isolated chromatographically.

Quality

May not contain folate binding protein; not recommended for folate analysis.

Preparation Note

Crystallized

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Tristan Bourdeau et al.
Nutrients, 13(9) (2021-09-29)
Human clinical trials have shown that a specific partially hydrolyzed 100% whey-based infant formula (pHF-W) reduces AD risk in the first yeast of life. Meta-analyses with a specific pHF-W (pHF-W1) confirm a protective effect while other meta-analyses pooling different pHF-W
Nicholas A Smith et al.
Brain, behavior, and immunity, 95, 122-141 (2021-03-12)
A number of studies have reported comorbidity of food allergies with various neuropsychiatric disorders, such as anxiety, depression, attention-deficit hyperactivity disorder, and autism. However, inconsistent results across clinical studies have left the association between food allergy and behavioral disorders inconclusive.
Rachana Pathak et al.
European biophysics journal : EBJ, 51(4-5), 335-352 (2022-05-17)
Amyloid crystals, a form of ordered protein aggregates documented relatively recently, have not been studied as extensively as amyloid fibres. This study investigates the formation of amyloid crystals with low frequency ultrasound (20 kHz) using β-lactoglobulin, as a model protein for
André C Dumetz et al.
Biophysical journal, 94(2), 570-583 (2007-12-28)
The aggregates and gels commonly observed during protein crystallization have generally been considered disordered phases without further characterization. Here their physical nature is addressed by investigating protein salting-out in ammonium sulfate and sodium chloride for six proteins (ovalbumin, ribonuclease A
A Heinzmann et al.
International archives of allergy and immunology, 120(4), 280-286 (2000-01-21)
beta-Lactoglobulin (BLG) represents one of the major allergens causing cow's milk allergy (CMA) - a disease with a wide spectrum of clinical symptoms. The aim of this study was to evaluate sequential B cell epitopes of BLG by the Pin-ELISA

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