D-alanine biosynthetic process obsolete D-alanine metabolic process https://github.com/geneontology/go-ontology/issues/31357 true OBSOLETE. The chemical reactions and pathways involving D-alanine, the D-enantiomer of the amino acid alanine, i.e. (2R)-2-aminopropanoic acid. This term was obsoleted because it is an unnecessary grouping term. biological_process D-alanine metabolism GO:0046436 D-alanine catabolic process