an N-octadecanoyl-sphingoid base + CoA + H(+) => a sphingoid base + octadecanoyl-CoA
an n-octadecanoyl-sphingoid base + coa + h(+) => a sphingoid base + octadecanoyl-coa
an N-octadecanoyl-sphingoid base + CoA + H(+) => a sphingoid base + octadecanoyl-CoA
an n-octadecanoyl-sphingoid base + coa + h(+) => a sphingoid base + octadecanoyl-coa