preferred_name: L-cystine(in) + L-glutamate(out) => L-cystine(out) + L-glutamate(in)
preferred_name_lc: l-cystine(in) + l-glutamate(out) => l-cystine(out) + l-glutamate(in)
label: L-cystine(in) + L-glutamate(out) => L-cystine(out) + L-glutamate(in)
label_lc: l-cystine(in) + l-glutamate(out) => l-cystine(out) + l-glutamate(in)