β-Lactoglobulin B from bovine milk
SIGMA/L8005 - ≥90% (PAGE)
Synonym: β-LG; Bos d 5; beta-LG
CAS Number: 9066-45-9
MDL Number: MFCD00130637
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: L8005-100MG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: L8005-250MG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: L8005-25MG
| assay | ≥90% (PAGE) |
| biological source | bovine milk |
| form | powder |
| mol wt | 18,276 Da by calculation |
| Quality Level | 200  |
| storage temp. | 2-8°C |
| technique(s) | electrophoresis: suitable |
| HPLC: suitable | |
| UniProt accession no. | P02754  |
| Application: | β-Lactoglobulin B from bovine milk has been used as: • a protein standard in SDS-polyacrylamide electrophoresis for quantification of milk protein fractions • in the calibration of reversed phase- high-performance liquid chromatography (HPLC) for caseins quantification • for immobilization on the biosensor surface and a calibration standards in biosensor assay |
| Application: | 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 B (β-LG B) show less inhibitory effect on the Staphylaococcus sp compared to β-LG A. |
| General description: | 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. |
| General description: | β-Lactoglobulin B (β-LG B), a isoform of β-Lactoglobulin, is a small protein of 162 amino acids with a molecular mass of 18.2 kDa and optimum pH of 5.2. It is present in high level in casein and is relatively low in raw bovine milk. β-LG has eight-stranded β-barrel (strands A-H) succeeded by a three-turn α-helix and a final β-strand (strand I), that forms part of the dimerization interface. |
| Packaging: | 25, 100, 250 mg in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥90% (PAGE) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352202 |