Cited passages: 3AA-1, Table 1 and its note on hypothetical uncharged formulas; 3AA-2.2.1, acyclic-amino-acid numbering; 3AA-1, Table 1: alpha-amino acids incorporated into protein under mRNA direction; 3AA-1, Table 1: glycine, alanine and proline structures; 3AA-2.2.5, backbone and side chain.
Cited passages: 3AA-3.2, note: glycine itself is achiral; 3AA-3.3 and 3AA-3.5, protein-source L configuration.