preferred_name: carnosine(in) + n H(+)(in) => carnosine(out) + n H(+)(out)
preferred_name_lc: carnosine(in) + n h(+)(in) => carnosine(out) + n h(+)(out)
label: carnosine(in) + n H(+)(in) => carnosine(out) + n H(+)(out)
label_lc: carnosine(in) + n h(+)(in) => carnosine(out) + n h(+)(out)