sphing-4-enine + octadecanoyl-CoA <=> N-octadecanoylsphing-4-enine + CoA + H(+)
sphing-4-enine + octadecanoyl-coa <=> n-octadecanoylsphing-4-enine + coa + h(+)
sphing-4-enine + octadecanoyl-CoA <=> N-octadecanoylsphing-4-enine + CoA + H(+)
sphing-4-enine + octadecanoyl-coa <=> n-octadecanoylsphing-4-enine + coa + h(+)