产品名称
β-乳球蛋白 B 来源于牛奶, ≥90% (PAGE)
biological source
bovine milk
assay
≥90% (PAGE)
form
powder
mol wt
18,276 Da by calculation
technique(s)
HPLC: suitable
electrophoresis: suitable
UniProt accession no.
storage temp.
2-8°C
Quality Level
Gene Information
bovine ... LGB(280838)
Application
β-乳球蛋白用于通过等电聚焦电泳法鉴定牛奶中 κ-酪蛋白的遗传变异。
β牛乳来源乳球蛋白 B 用作：
- 蛋白标准品，用于SDS-聚丙烯酰胺电泳，定量乳蛋白成分
- 在校准反相高效液相色谱（HPLC）过程中，定量酪蛋白
- 用于固定在生物传感器表面，作为校准标准品，检测生物传感器
Biochem/physiol Actions
β与β-LG A相比，-乳球蛋白B（β-LG B）对葡萄球菌的抑制作用较小。
General description
β-乳球蛋白B（β-LG B）为 β-乳球蛋白同工型，是由162个氨基酸组成的小分子蛋白，分子量为18.2 kDa 最适pH为5.2。 在酪蛋白中含量高，在生牛乳中含量相对较低。β-LG 有八股 β桶状结构（A-H链）后接三转角 α螺旋和最终 β链（I链），形成二聚体的一部分。
奶牛乳汁中含有β-乳球蛋白 (BLG)。它天然存在于许多遗传变异体中，最普遍的牛变体被称为BLG A和BLG B。
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
法规信息
低风险生物材料
此项目有
The beta-lactoglobulin content of bovine milk: Development and application of a biosensor immunoassay
Indyk HE, et al.
International dairy journal, 73, 68-73 (2017)
Analysis of alpha-lactalbumin, beta-lactoglobulin A and B in whey protein powder, colostrum, raw milk, and infant formula by CE and LC
Ding X, et al.
Dairy science & technology, 91(2), 213-225 (2011)
Antimicrobial activity of bovine beta-lactoglobulin against mastitis-causing bacteria
Chaneton L, et al.
Journal of Dairy Science, 94(1), 138-145 (2011)
Huaying Zhao et al.
Current protocols in protein science, 101(1), e109-e109 (2020-07-03)
Sedimentation velocity analytical ultracentrifugation is a powerful classical method to study protein self-association processes in solution based on the size-dependent macromolecular migration in the centrifugal field. This technique can elucidate the assembly scheme, measure affinities ranging from picomolar to millimolar
Alessandro Nucara et al.
SpringerPlus, 2, 661-661 (2013-12-20)
The interaction between whey carrier protein β-lactoglobulin B and (-)-epicatechin, a major dietary flavonoid with a wide range of health-promoting biological activities, was investigated by Fourier transform infrared spectroscopy in physiological conditions. Amide I spectra of epicatechin - β-lactoglobulin complexes
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