preferred_name: peptide cross-linking via 2-(S-L-cysteinyl)-D-allo-threonine
preferred_name_lc: peptide cross-linking via 2-(s-l-cysteinyl)-d-allo-threonine
label: peptide cross-linking via 2-(S-L-cysteinyl)-D-allo-threonine
label_lc: peptide cross-linking via 2-(s-l-cysteinyl)-d-allo-threonine