Molecule of Glutamine (C5,H10. N2. O3, one of the non-essential amino acids in humans. Although the body can produce it, immune system weaknesses and nerve problems can occur during times of high demand. The body uses glutaminete to create proteins, so-called amino sugars, and to support the production of antioxidant glutathione. Atoms are represented as spheres and are colour-coded: carbon black hydrogen (white), nitrogen (blue) and oxygen (red). Illustration.