Chains and heterogens:
PDB Chain Sequences:
>1h72C (C:) mkvrvkapctsanlgvgfdvfglclkepydvieveaiddkeiiievddkniptdpdknva givakkmiddfnigkgvkitikkgvkagsglgssaassagtayainelfklnldklklvd yasygelassgakhadnvapaifggftmvtnyeplevlhipidfkldiliaipnisintk eareilpkavglkdlvnnvgkacgmvyalynkdkslfgrymmsdkviepvrgklipnyfk ikeevkdkvygitisgsgpsiiafpkeefidevenilrdyyentirtevgkgvevv