aspartate family amino acid biosynthetic process +
aspartate family amino acid catabolic process +
aspartate metabolic process +
hydroxylysine metabolic process +
L-lysine metabolic process +
methionine metabolic process +
threonine metabolic process +
The chemical reactions and pathways involving threonine (2-amino-3-hydroxybutyric acid), a polar, uncharged, essential amino acid found in peptide linkage in proteins.