Milk is composed of water, proteins, lipids, lactose, vit-amins, and minerals. More than 80% most mam-mals’ milk proteins are con-stituted by caseins. Casein a group they sub-divided into αs1-, αs2-, β- -casein families. Among these ca-sein families, -casein the second abundant pro-tein. Different mutations in cow gene led to 12 genetic variants common A1 A2. The A2 differ only at amino acid ...

The present investigation was aimed at studying 1.26 kb αS2-casein promoter gene in αS2casein gene locus between the three buffalo breeds. αS2 -casein promoter gene was amplifi ed by PCR using oligonucleotide primers standardized for Bos taurus species. The sizes of the amplifi cation products were similar. PCR amplicons are subjected to restriction digestion by the enzyme Eco RV, only an intac...

Kappa-casein (κ-casein) is one of the most abundant milk proteins. Its main function is to avoid the aggregation of casein micelles, keeping them, and therefore calcium phosphate, in pockets in solution. In bovines, a κ-casein functional polymorphism has been associated with fat, calcium, and protein milk contents and faster curd contraction in cheese production. Quicker curd contraction reduce...

the κ-casein protein plays a fundamental role in milk production and its composition synthesis in the mammary gland. this protein has an important role in the formation, stabilization, and aggregation of the casein micelles. in this study, we investigated the genetic variability at the exon 4 of the κ-casein gene (also known as csn3) using pcr-sscp analysis and dna sequencing. then a protein se...

This research sought to determine the effect of selected milk protein polymorphisms on reproduction parameters 598 black and white Polish Holstein–Friesian cattle. The analyzed genes were kappa-casein (CSN3) beta-lactoglobulin (BLG). following reproductive indexes selected: age at first calving, interpregnancy period, calving interval, insemination index. influence identified genotypes course p...

Amyloid fibrils are aggregated and precipitated forms of protein in which the protein exists in highly ordered, long, unbranching threadlike formations that are stable and resistant to degradation by proteases. Fibril formation is an ordered process that typically involves the unfolding of a protein to partially folded states that subsequently interact and aggregate through a nucleation-depende...