Leucine - Definition

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Leucine, often abbreviated as Leu, is a member of the essential amino acids family that are involved in constructing proteins. This molecule also plays an important role in the synthesis of sterols, carried out by muscle and adipose tissue. Furthermore, leucine has a role in growth by stimulating growth hormones. Known as E641 in the agricultural world, this molecule is found in certain foods, such as tuna, peanuts, beef, and wheat germ.