Chains and heterogens:
PDB Chain Sequences:
>1cp2A (A:) mrqvaiygkggigkstttqnltsglhamgktimvvgcdpkadstrlllgglaqksvldtl reegedveldsilkegyggircvesggpepgvgcagrgiitsinmleqlgaytddldyvf ydvlgdvvcggfampiregkaqeiyivasgemmalyaanniskgiqkyaksggvrlggii cnsrkvaneyelldafakelgsqlihfvprspmvtkaeinkqtvieydptceqaeeyrel arkvdanelfvipkpmtqerleeilmqyg
>1cp2B (B:) mrqvaiygkggigkstttqnltsglhamgktimvvgcdpkadstrlllgglaqksvldtl reegedveldsilkegyggircvesggpepgvgcagrgiitsinmleqlgaytddldyvf ydvlgdvvcggfampiregkaqeiyivasgemmalyaanniskgiqkyaksggvrlggii cnsrkvaneyelldafakelgsqlihfvprspmvtkaeinkqtvieydptceqaeeyrel arkvdanelfvipkpmtqerleeilmqyg