preferred_name: L-alanyl-L-lysine(in) + H(+)(in) => L-alanyl-L-lysine(out) + H(+)(out)
preferred_name_lc: l-alanyl-l-lysine(in) + h(+)(in) => l-alanyl-l-lysine(out) + h(+)(out)
label: L-alanyl-L-lysine(in) + H(+)(in) => L-alanyl-L-lysine(out) + H(+)(out)
label_lc: l-alanyl-l-lysine(in) + h(+)(in) => l-alanyl-l-lysine(out) + h(+)(out)