Chains and heterogens:
PDB Chain Sequences:
>7a4cA (A:) msgpvpsrarvytdvnthrpreywdyeshvvewgnqddyqlvrklgrgkysevfeainit nnekvvvkilkpvkkkkikreikilenlrggpniitladivkdpvsrtpalvfehvnntd fkqlyqtltdydirfymyeilkaldychsmgimhrdvkphnvmidhehrklrlidwglae fyhpgqeynvrvasryfkgpellvdyqmydysldmwslgcmlasmifrkepffhghdnyd qlvriakvlgtedlydyidkynieldprfndilgrhsrkrwerfvhsenqhlvspealdf ldkllrydhqsrltareamehpyfytvvkdqarmg
>7a4cA (A:) sgpvpsrarvytdvnthrpreywdyeshvvewgnqddyqlvrklgrgkysevfeainitn nekvvvkilkpvkkkkikreikilenlrggpniitladivkdpvsrtpalvfehvnntdf kqlyqtltdydirfymyeilkaldychsmgimhrdvkphnvmidhehrklrlidwglaef yhpgqeynvrvasryfkgpellvdyqmydysldmwslgcmlasmifrkepffhghdnydq lvriakvlgtedlydyidkynieldprfndilgrhsrkrwerfvhsenqhlvspealdfl dkllrydhqsrltareamehpyfytvvkdqarmg
>7a4cB (B:) msgpvpsrarvytdvnthrpreywdyeshvvewgnqddyqlvrklgrgkysevfeainit nnekvvvkilkpvkkkkikreikilenlrggpniitladivkdpvsrtpalvfehvnntd fkqlyqtltdydirfymyeilkaldychsmgimhrdvkphnvmidhehrklrlidwglae fyhpgqeynvrvasryfkgpellvdyqmydysldmwslgcmlasmifrkepffhghdnyd qlvriakvlgtedlydyidkynieldprfndilgrhsrkrwerfvhsenqhlvspealdf ldkllrydhqsrltareamehpyfytvvkdqarmg
>7a4cB (B:) sgpvpsrarvytdvnthrpreywdyeshvvewgnqddyqlvrklgrgkysevfeainitn nekvvvkilkpvkkkkikreikilenlrggpniitladivkdpvsrtpalvfehvnntdf kqlyqtltdydirfymyeilkaldychsmgimhrdvkphnvmidhehrklrlidwglaef yhpgqeynvrvasryfkgpellvdyqmydysldmwslgcmlasmifrkepffhghdnydq lvriakvlgtedlydyidkynieldprfndilgrhsrkrwerfvhsenqhlvspealdfl dkllrydhqsrltareamehpyfytvvkdqarmg