Nitrogen metabolism
Nitrogen balance and protein turnover : protein and amino acids in human nutrition
The role of vitamin B6 in amino acid metabolism
Glycine, serine, and the one-carbon pool
Amino acids synthesised from glutamate : glutamine, proline, ornithine, citrulline, and arginine
Amino acids synthesised from aspartate : lysine, methionine (and cysteine), threonine and isoleucine
The branched-chain amino acids, leucine, isoleucine, and valine
Histidine
The aromatic amino acids, phenylalanine, tyrosine, and tryptophan.