Yes, α-Lactalbumin is a glycoprotein. It is a protein that is found in the milk of mammals and plays a crucial role in the synthesis of lactose in the mammary glands. Glycoproteins like α-Lactalbumin have carbohydrate groups attached to the polypeptide chain, which can influence their function and stability. In the case of α-Lactalbumin, these glycosylation modifications are important for its biological activity and interactions.
L5385
α-Lactalbumin from bovine milk
Type I, ≥85% (PAGE), lyophilized powder
Synonym(s):
Bos d 4, Lactose synthase B protein, alpha-lactalbumin
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25 MG
$71.82
100 MG
$222.00
500 MG
$771.40
1 G
$1,301.50
About This Item
$71.82
List Price$75.60Save 5%Web-Only Promotion
Available to ship onApril 29, 2025Details
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biological source
bovine milk
Quality Level
type
Type I
assay
≥85% (PAGE)
form
lyophilized powder
concentration
≥85 % protein
technique(s)
cell culture | mammalian: suitable
electrophoresis: suitable
impurities
calcium, tested
solubility
H2O: soluble 10 mg/mL, clear to slightly hazy, colorless to faintly yellow
UniProt accession no.
storage temp.
−20°C
Gene Information
cow ... LALBA(281894)
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General description
α-Lactalbumin is a small, globular, whey protein that has been found in all milk studied to date. It is a metalloprotein of approximately 14 kDa produced in the mammary glands.[1]
Application
Biochem/physiol Actions
α-Lactalbumin is the cheif protein in human milk. It consists of a single polypeptide chain with 8 cysteines which form disulfide bridges. α-Lactalbumin binds several metal ions, including calcium, which is thought to play a role in the regeneration of native α-lactalbumin from the reduced, denatured form.[5] α-Lactalbumin also has a distinct zinc binding site that is thought to play a role in the binding of the lactose synthase complex. [6][7] The mature protein consists of 123 amino acid residues (14 kD), and it has a three-dimensional structure with 1.7 Α° resolution, demonstrating four α-helices and a triple stranded antiparallel β-sheet.[1]
Alters the substrate specificity of galactosyltransferase to increase the rate of lactose formation; the complex of galactosyltransferase and α-lactalbumin is called lactose synthase.
Alters the substrate specificity of galactosyltransferase to increase the rate of lactose formation; the complex of galactosyltransferase and α-lactalbumin is called lactose synthase. Site-directed mutagenesis of Asp87 or Asp88 to Ala completely abolishes the strong calcium binding affinity and reduces the stimulation of lactose synthase to <3.5% of the maximal rate.
Quality
Calcium saturated. May have traces of ammonium sulfate and sodium phosphate
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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α-Lactalbumin is a glycoprotéine? Bonjour votre α-Lactalbumin est une glycoprotéine ou pas svp?
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