MilliporeSigma
All Photos(3)

C0406

Sigma-Aldrich

κ-Casein from bovine milk

≥70% (PAGE), lyophilized powder

Synonym(s):
Kappa-Casein
CAS Number:
EC Number:
MDL number:
NACRES:
NA.61

biological source

bovine milk

Quality Level

assay

≥70% (PAGE)

form

lyophilized powder

technique(s)

isoelectric focusing (IEF): suitable

storage temp.

−20°C

Gene Information

General description

Caseins constitute 80% of the total milk proteins in the cow. κ-Casein is one of the major allergens in cow milk. It is a glycosylated protein comprising galactose, galactosamine, and sialic acid. It exists as tri- or tetrasaccharides and occurs in different isoforms based on the number of oligosaccharides attached to it. κ-Casein has a hydrophobic N-terminus and a hydrophilic C-terminus region.

Application

κ-Casein from bovine milk has been used:
  • as a standard to quantify the casein concentration and to evaluate the ability of the bacterial strain to hydrolyze caseins released by HM Mozzarella
  • in LPS-depleted cow′s milk protein preparation for lymphoproliferation assay
  • as standard to quantify κ-casein concentration in skimmed milk samples by reversed-phase high-performance liquid chromatography (RP-HPLC)

Packaging

100, 250 mg in poly bottle
1 g in poly bottle

Biochem/physiol Actions

κ-Casein from bovine milk is an immunoglobulin E (IgE)-binding epitope belonging to the casein phosphoprotein family. κ-Casein is important to the electrostatic and steric stabilization of casein micelles suspensions. It resists calcium precipitation and therefore, stabilizes other caseins. κ-Casein has been a target of research for creating low-phenylalanine milk through gene modification, which is important for patients suffering from metabolic diseases such as phenylketonuria (PKU).

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

SDS

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