label: 4-hydroxy-2-oxobutanal + L-lysyl-[protein] + phosphate => N(6)-(3-O-phospho-D-erythrulosyl)-L-lysyl-[protein] + H2O
label_lc: 4-hydroxy-2-oxobutanal + l-lysyl-[protein] + phosphate => n(6)-(3-o-phospho-d-erythrulosyl)-l-lysyl-[protein] + h2o