preferred_name: butanoate(out) + Na(+)(out) = butanoate(in) + Na(+)(in)
preferred_name_lc: butanoate(out) + na(+)(out) = butanoate(in) + na(+)(in)
label: butanoate(out) + Na(+)(out) = butanoate(in) + Na(+)(in)
label_lc: butanoate(out) + na(+)(out) = butanoate(in) + na(+)(in)