preferred_name: a [peptide]-C-terminal amide + glyoxylate => a [peptide]-C-terminal (2S)-2-hydroxyglycine
preferred_name_lc: a [peptide]-c-terminal amide + glyoxylate => a [peptide]-c-terminal (2s)-2-hydroxyglycine
label: a [peptide]-C-terminal amide + glyoxylate => a [peptide]-C-terminal (2S)-2-hydroxyglycine
label_lc: a [peptide]-c-terminal amide + glyoxylate => a [peptide]-c-terminal (2s)-2-hydroxyglycine