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