preferred_name: L-alanyl-L-serine + N-acetyl-L-methionine => N(alpha)-acetyl-L-methionyl-L-alanyl-L-serine + H2O
preferred_name_lc: l-alanyl-l-serine + n-acetyl-l-methionine => n(alpha)-acetyl-l-methionyl-l-alanyl-l-serine + h2o
label: L-alanyl-L-serine + N-acetyl-L-methionine => N(alpha)-acetyl-L-methionyl-L-alanyl-L-serine + H2O
label_lc: l-alanyl-l-serine + n-acetyl-l-methionine => n(alpha)-acetyl-l-methionyl-l-alanyl-l-serine + h2o