has part has role is conjugate acid of is conjugate base of threonine An alpha-amino acid in which one of the hydrogens attached to the alpha-carbon of glycine is substituted by a 1-hydroxyethyl group. Beilstein:8204750 C4H9NO3 CAS:80-68-2 CHEBI:26986 PMID:11379295 PMID:15221503 PMID:22264337 Threonin Wikipedia:Threonine chebi_ontology threonine threoninate threoninium 2-amino-3-hydroxybutanoic acid 1-hydroxyethyl group Daphnia magna metabolite