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An amino acid in which the amino group is located on the carbon atom at the position alpha to the carboxy group." []

Any arylamine having an acetytoxy group attached to the nitrogen." []

Any glycine derivative in which glycine is substituted at position 2 by an alkyl group." []

An amino acid in which the amino group is located on the carbon atom at the position alpha to the carboxy group." []

Any alpha-amino acid having L-configuration at the alpha-carbon." []

An amino acid whose structure includes an aromatic ring." []

Any amino acid whose side chain is capable of forming one or more hydrogen bonds." []

An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of any N-alkylglycine; major species at pH 7.3." []

Zwitterionic form of a D-alpha-amino acid having an anionic carboxy group and a protonated amino group." []

Zwitterionic form of a polar amino acid having an anionic carboxy group and a protonated amino group." []

An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of any aromatic amino-acid." []

An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of any alpha-amino acid; major species at pH 7.3." []

Zwitterionic form of an L-alpha-amino acid having an anionic carboxy group and a protonated amino group." []