Alpha Lactalbumin (alpha La, alpha Lactalbumin) widely exist in mammals (cattle, goats, camels, horses, guinea pigs, rabbits, etc.) and human breast milk, is synthesized from mammary gland bubble epithelial special protein.
Milk in the alpha than the alpha La La and human milk 74% amino acid is the same, 6% of the amino acids are very similar.
Alpha La globulin for structure closely, 26% of secondary structure of alpha helix, 14% for beta fold, 60% were disordered structure, its tertiary structure similar to lysozyme.
Alpha La is a major whey protein, have milk, lyse activity and cell growth inhibition and apoptosis induction, etc. Alpha La helps to relieve stress, improve performance, and improve sleep, improve the abstract visual memory. All of these functions, improve mood, sleep and memory depends on alpha high tryptophan content in La.