metabolic process
   |__primary metabolic process
       |__amino acid metabolic process  194 rec.
           |__alpha-amino acid metabolic process 122 rec.
           |   |__alpha-amino acid biosynthetic process(+) 42 rec.
           |   |__alpha-amino acid catabolic process(+) 74 rec.
           |   |__arginine metabolic process(+) 6 rec.
           |   |__aspartate metabolic process(+) 3 rec.
           |   |__D-amino acid metabolic process(+) 3 rec.
           |   |__glutamate metabolic process(+) 15 rec.
           |   |__glycine metabolic process(+) 11 rec.
           |   |__homocysteine metabolic process(+) 17 rec.
           |   |__L-amino acid metabolic process(+) 112 rec.
           |   |__ornithine metabolic process(+) 1 rec.
           |__amino acid activation 48 rec.
           |   |__amino acid activation for nonribosomal peptide biosynthetic process(+) 2 rec.
           |   |__tRNA aminoacylation(+) 46 rec.
           |__amino acid biosynthetic process 49 rec.
           |   |__4-aminobenzoate biosynthetic process
           |   |__alpha-amino acid biosynthetic process(+) 42 rec.
           |   |__amino acid salvage(+) 2 rec.
           |   |__beta-alanine biosynthetic process 5 rec.
           |   |__carnosine biosynthetic process
           |   |__GABA biosynthetic process 1 rec.
           |   |__nicotianamine biosynthetic process
           |   |__ornithine lipid biosynthetic process
           |   |__pyrrolysine biosynthetic process
           |   |__regulation of amino acid biosynthetic process(+) 2 rec.
           |__amino acid catabolic process 78 rec.
           |   |__alpha-amino acid catabolic process(+) 74 rec.
           |   |__amino acid fermentation(+)
           |   |__beta-alanine catabolic process
           |   |__branched-chain amino acid catabolic process(+) 23 rec.
           |   |__GABA catabolic process(+) 2 rec.
           |__aromatic amino acid metabolic process 21 rec.
           |   |__aromatic amino acid biosynthetic process(+) 2 rec.
           |   |__aromatic amino acid catabolic process(+) 16 rec.
           |   |__dopamine biosynthetic process from tyrosine 1 rec.
           |   |__L-phenylalanine metabolic process(+) 7 rec.
           |   |__L-tryptophan metabolic process(+) 7 rec.
           |   |__melanin biosynthetic process from tyrosine 3 rec.
           |__branched-chain amino acid metabolic process 23 rec.
           |   |__branched-chain amino acid biosynthetic process(+)
           |   |__branched-chain amino acid catabolic process(+) 23 rec.
           |   |__L-leucine metabolic process(+) 12 rec.
           |__carnosine metabolic process 1 rec.
           |   |__carnosine biosynthetic process
           |__non-proteinogenic amino acid metabolic process 29 rec.
           |   |__D-amino acid metabolic process(+) 3 rec.
           |   |__homocysteine metabolic process(+) 17 rec.
           |   |__L-homoserine metabolic process(+)
           |   |__non-proteinogenic amino acid biosynthetic process(+) 7 rec.
           |   |__non-proteinogenic amino acid catabolic process(+) 5 rec.
           |   |__ornithine metabolic process(+) 1 rec.
           |   |__peptidyl-proline hydroxylation to 3-hydroxy-L-proline
           |   |__peptidyl-proline hydroxylation to 4-hydroxy-L-proline
           |__proteinogenic amino acid metabolic process 119 rec.
           |   |__'de novo' NAD+ biosynthetic process from L-aspartate
           |   |__dopamine biosynthetic process from tyrosine 1 rec.
           |   |__GABA shunt 2 rec.
           |   |__glycine metabolic process(+) 11 rec.
           |   |__L-glutamine metabolic process(+) 7 rec.
           |   |__L-leucine metabolic process(+) 12 rec.
           |   |__L-methionine metabolic process(+) 17 rec.
           |   |__L-phenylalanine metabolic process(+) 7 rec.
           |   |__L-proline metabolic process(+) 8 rec.
           |   |__L-serine metabolic process(+) 6 rec.
           |   |__L-threonine metabolic process(+) 3 rec.
           |   |__L-tryptophan metabolic process(+) 7 rec.
           |   |__melanin biosynthetic process from tyrosine 3 rec.
           |   |__proteinogenic amino acid biosynthetic process(+) 41 rec.
           |   |__proteinogenic amino acid catabolic process(+) 71 rec.
           |   |__transsulfuration 2 rec.
           |__regulation of amino acid metabolic process 2 rec.
               |__negative regulation of amino acid metabolic process(+)
               |__positive regulation of amino acid metabolic process(+) 1 rec.
               |__regulation of 'de novo' NAD biosynthetic process from L-tryptophan(+)
               |__regulation of amino acid biosynthetic process(+) 2 rec.
               |__regulation of ammonia assimilation cycle(+)
               |__regulation of arginine catabolic process(+)
               |__regulation of GABA catabolic process(+)
               |__regulation of L-proline catabolic process(+)
               |__regulation of ornithine catabolic process(+)