an L-amino acid tripeptide(out) + 2 H(+)(out) <=> an L-amino acid tripeptide(in) + 2 H(+)(in)
an l-amino acid tripeptide(out) + 2 h(+)(out) <=> an l-amino acid tripeptide(in) + 2 h(+)(in)
an L-amino acid tripeptide(out) + 2 H(+)(out) <=> an L-amino acid tripeptide(in) + 2 H(+)(in)
an l-amino acid tripeptide(out) + 2 h(+)(out) <=> an l-amino acid tripeptide(in) + 2 h(+)(in)