Chains and heterogens:
PDB Chain Sequences:
>1gyrA (A:) mitaqavlytqhgepkdvlftqsfeidddnlapnevivktlgspvnpsdinqiqgvnpsk pakttgfgttepaapcgneglfevikvgsnvssleagdwvipshvnfgtwrthalgnddd fiklpnpaqskangkpngltinqgatisvnpltaylmlthyvkltpgkdwfiqnggtsav gkyasqigkllnfnsisvirdrpnldevvaslkelgatqvitedqnnsrefgptikewik qsggeaklalncvggksstgiarklnnnglmltyggmsfqpvtiptslyifknftsagfw vtellknnkelktstlnqiiawyeegkltdaksietlydgtkplhelyqdgvanskdgkq lity
>1gyrB (B:) mitaqavlytqhgepkdvlftqsfeidddnlapnevivktlgspvnpsdinqiqgvnpsk pakttgfgttepaapcgneglfevikvgsnvssleagdwvipshvnfgtwrthalgnddd fiklpnpaqskangkpngltinqgatisvnpltaylmlthyvkltpgkdwfiqnggtsav gkyasqigkllnfnsisvirdrpnldevvaslkelgatqvitedqnnsrefgptikewik qsggeaklalncvggksstgiarklnnnglmltyggmsfqpvtiptslyifknftsagfw vtellknnkelktstlnqiiawyeegkltdaksietlydgtkplhelyqdgvanskdgkq lity
>1gyrC (C:) mitaqavlytqhgepkdvlftqsfeidddnlapnevivktlgspvnpsdinqiqgvnpsk pakttgfgttepaapcgneglfevikvgsnvssleagdwvipshvnfgtwrthalgnddd fiklpnpaqskangkpngltinqgatisvnpltaylmlthyvkltpgkdwfiqnggtsav gkyasqigkllnfnsisvirdrpnldevvaslkelgatqvitedqnnsrefgptikewik qsggeaklalncvggksstgiarklnnnglmltyggmsfqpvtiptslyifknftsagfw vtellknnkelktstlnqiiawyeegkltdaksietlydgtkplhelyqdgvanskdgkq lity