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n. A globular multifunctional protein with antimicrobial activity, found in milk and many mucosal secretions such as tears and saliva.

"It may come as a surprise but a milk protein called lactoferrin has actually been found to help reduce the development of bacteria responsible for many skin impurities and can help prevent blemishes and spots forming due to its antimicrobial effect."

lactotransferrin   

ferritin    nucleolin    calmodulin    telomerase    fibronectin