a ceramide(out) + ADP + phosphate + H(+) => a ceramide(in) + ATP + H2O
a ceramide(out) + adp + phosphate + h(+) => a ceramide(in) + atp + h2o
a ceramide(out) + ADP + phosphate + H(+) => a ceramide(in) + ATP + H2O
a ceramide(out) + adp + phosphate + h(+) => a ceramide(in) + atp + h2o