LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Methionine. Molecular model of the essential amino acid methionine (C5.H11.N.O2.S). This sulphur-containing alpha-amino acid is one of the amino acids that is a precursor to proteins (proteinogenic). Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white), nitrogen (blue), oxygen (red) and sulphur (yellow). Illustration.
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