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 <=> a sphingoid base + phosphocholine + h(+)