preferred_name: citrate(in) + 3 H(+)(in) => citrate(out) + 3 H(+)(out)
preferred_name_lc: citrate(in) + 3 h(+)(in) => citrate(out) + 3 h(+)(out)
label: citrate(in) + 3 H(+)(in) => citrate(out) + 3 H(+)(out)
label_lc: citrate(in) + 3 h(+)(in) => citrate(out) + 3 h(+)(out)