an N-acyl-15-methylhexadecasphing-4-enine-1-phosphate + H2O => an N-acyl-15-methylhexadecasphing-4-enine + phosphate
an n-acyl-15-methylhexadecasphing-4-enine-1-phosphate + h2o => an n-acyl-15-methylhexadecasphing-4-enine + phosphate