Lactalbumin, alpha-, also known as LALBA,'s a protein which in humans's encoded by the LALBA gene. Function α-lactalbumin's an important whey protein in cow's milk (~1 g/l), and's also present in the milk of many other mammalian species. In primates, alpha-lactalbumin expression's upregulated in response to the hormone prolactin and increases the production of lactose. α-lactalbumin forms the regulatory subunit of the lactose synthase (LS) heterodimer and β-1,4-galactosyltransfe… (More on Alpha-lactalbumin)