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Amino Acid Biosynthesis

  1. Giacomo Deferrari,
  2. Irene Mannucci,
  3. Giacomo Garibotto

Published Online: 15 SEP 2010

DOI: 10.1002/9780470015902.a0000628.pub2



How to Cite

Deferrari, G., Mannucci, I. and Garibotto, G. 2010. Amino Acid Biosynthesis. eLS. .

Author Information

  1. University of Genoa, Genoa, Italy

Publication History

  1. Published Online: 15 SEP 2010
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Figure 1. The nitrogen cycle.

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Figure 2. Outline of pathways of synthesis of essential amino acids.

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Figure 3. The hydroxylation of phenylalanine to tyrosine. From Scriver et al. 1995.

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Figure 4. The reaction of glutamate dehydrogenase.

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Figure 5. The reactions of glutaminase and glutamine synthetase.

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Figure 6. Outline of pathways of synthesis of nonessential amino acids. Modified from Munro HM (ed.) (1969) Evolution of protein metabolism in mammals. In: Mammalian Protein Metabolism, vol. 3, pp. 133–182. New York: Academic Press.

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Figure 7. Pathways of homocysteine–cysteine metabolism. THF, tetrahydrofolate; B12, vitamin B12 and B6, vitamin B6.