K-Casein
(重定向自K casein)
![Molecular surface model of K-Casein[2]](/uploads/202501/22/K-caseína_comic0350.jpg)
![In red/blue Phe105-Met106 bond of κ- casein[2]](/uploads/202501/22/Punto_de_corte0350.jpg)

K-Casein (or Kappa-casein, k casein, kappa casein) is a mammalian milk protein involved in a number of important physiological processes. In the gut, the ingested protein is split into an insoluble peptide (para kappa-casein) and a soluble hydrophilic glycopeptide (caseinomacropeptide). Caseinomacropeptide is responsible for increased efficiency of digestion, prevention of neonate hypersensitivity to ingested proteins, and inhibition of gastric pathogens.