preferred_name: L-serine + a fatty acid => an N-(fatty acyl)-L-serine + H2O
preferred_name_lc: l-serine + a fatty acid => an n-(fatty acyl)-l-serine + h2o
label: L-serine + a fatty acid => an N-(fatty acyl)-L-serine + H2O
label_lc: l-serine + a fatty acid => an n-(fatty acyl)-l-serine + h2o