a sphingoid base + phosphocholine + H(+) => a sphingosylphosphocholine + H2O
a sphingoid base + phosphocholine + h(+) => a sphingosylphosphocholine + h2o
a sphingoid base + phosphocholine + H(+) => a sphingosylphosphocholine + H2O
a sphingoid base + phosphocholine + h(+) => a sphingosylphosphocholine + h2o