Glycine, serine and threonine metabolism

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Serine is derived from 3-phospho-D-glycerate, an intermediate of glycolysis [MD:M00020], and glycine is derived from serine. Threonine is an essential amino acid, which animals cannot synthesize. In bacteria and plants, threonine is derived from aspartate [MD:M00018].

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Pathway modules
- Amino acid metabolism
  - Serine and threonine metabolism
    - M00020 Serine biosynthesis
    - M00018 Threonine biosynthesis
    - M00621 Glycine cleavage system
    - M00555 Betaine biosynthesis
    - M00974 Betaine metabolism, animals
    - M00975 Betaine degradation, bacteria
    - M00033 Ectoine biosynthesis
    - M00919 Ectoine degradation
  - Cysteine and methionine metabolism
    - M00338 Cysteine biosynthesis
  - Arginine and proline metabolism
    - M00047 Creatine pathway

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