Chains and heterogens:
PDB Chain Sequences:
>7k12A (A:) mghhhhhhhhhhssghiegrhmkkpridmhshffpriseqeaakfdanhapwlqvsakgd tgsimmgknnfrpvyqalwdpafrieemdaqgvdvqvtcatpvmfgytweankaaqwaer mndfalefaahnpqrikvlaqvplqdldlackeasravaaghlgiqignhlgdkdlddat leaflthcanedipilvhpwdmmggqrmkkwmlpwlvampaetqlailslilsgaferip kslkicfghgggsfafllgrvdnawrhrdivredcprppseyvdrffvdsavfnpgalel lvsvmgedrvmlgsdypfplgeqkigglvlssnlgesakdkiisgnaskffninv
>7k12A (A:) kpridmhshffpriseqeaakfdanhapwlqvsakgdtgsimmgknnfrpvyqalwdpaf rieemdaqgvdvqvtcatpvmfgytweankaaqwaermndfalefaahnpqrikvlaqvp lqdldlackeasravaaghlgiqignhlgdkdlddatleaflthcanedipilvhpwdmm ggqrmkkwmlpwlvampaetqlailslilsgaferipkslkicfghgggsfafllgrvdn awrhrdivredcprppseyvdrffvdsavfnpgalellvsvmgedrvmlgsdypfplgeq kigglvlssnlgesakdkiisgnaskffnin
>7k12B (B:) mghhhhhhhhhhssghiegrhmkkpridmhshffpriseqeaakfdanhapwlqvsakgd tgsimmgknnfrpvyqalwdpafrieemdaqgvdvqvtcatpvmfgytweankaaqwaer mndfalefaahnpqrikvlaqvplqdldlackeasravaaghlgiqignhlgdkdlddat leaflthcanedipilvhpwdmmggqrmkkwmlpwlvampaetqlailslilsgaferip kslkicfghgggsfafllgrvdnawrhrdivredcprppseyvdrffvdsavfnpgalel lvsvmgedrvmlgsdypfplgeqkigglvlssnlgesakdkiisgnaskffninv
>7k12B (B:) kpridmhshffpriseqeaakfdanhapwlqvsakgdtgsimmgknnfrpvyqalwdpaf rieemdaqgvdvqvtcatpvmfgytweankaaqwaermndfalefaahnpqrikvlaqvp lqdldlackeasravaaghlgiqignhlgdkdlddatleaflthcanedipilvhpwdmm ggqrmkkwmlpwlvampaetqlailslilsgaferipkslkicfghgggsfafllgrvdn awrhrdivredcprppseyvdrffvdsavfnpgalellvsvmgedrvmlgsdypfplgeq kigglvlssnlgesakdkiisgnaskffnin