preferred_name: an L-amino acid tripeptide(out) + 2 H(+)(out) = an L-amino acid tripeptide(in) + 2 H(+)(in)
preferred_name_lc: an l-amino acid tripeptide(out) + 2 h(+)(out) = an l-amino acid tripeptide(in) + 2 h(+)(in)
label: an L-amino acid tripeptide(out) + 2 H(+)(out) = an L-amino acid tripeptide(in) + 2 H(+)(in)
label_lc: an l-amino acid tripeptide(out) + 2 h(+)(out) = an l-amino acid tripeptide(in) + 2 h(+)(in)