has role has role is conjugate base of is conjugate acid of is tautomer of has functional parent alanine Alanine Alanine CHEBI:2539 2-Aminopropionic acid A CHEBI:16449 CHEBI:13748 chebi_ontology An α-amino acid that consists of propionic acid bearing an amino substituent at position 2. alanina CHEBI:22277 Alanin 2-Aminopropanoic acid 2-Aminopropanoic acid ALA propionic acid alaninate alaninium alpha-amino acid alanine zwitterion fundamental metabolite