MAURIZIO DE ANGELIS / SCIENCE PHOTO LIBRARY MAURIZIO DE ANGELIS / SCIENCE PHOTO LIBRARY
Lysine amino acid molecule. Computer illustration showing the structure of a molecule of the amino acid lysine (C6.H14.N2.O2). Atoms are represented as spheres and are colour-coded: carbon (black), hydrogen (white), nitrogen (blue) and oxygen (red). Lysine is an essential amino acid, which are unable to be produced by the body and must be sourced from the diet. It plays a particularly important role in the immune system as it is involved in the development of antibodies and has important antiviral properties.
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