Chains and heterogens:
PDB Chain Sequences:
>4k9vA (A:) maylygthshglfkklgipgptplpflgnilsyhkgfcmfdmechkkygkvwgfydgqqp vlaitdpdmiktvlvkecysvftnrrpfgpvgfmksaisiaedeewkrlrsllsptftsg klkemvpiiaqygdvlvrnlrreaetgkpvtlkdvfgaysmdvitstsfgvnidslnnpq dpfventkkllrfdfldpfflsitvfpflipilevlnicvfprevtnflrksvkrmkesr ledtqkhrvdflqlmidsqnsketeshkalsdlelvaqsiififagyettssvlsfimye lathpdvqqklqeeidavlpnkapptydtvlqmeyldmvvnetlrlfpiamrlervckkd veingmfipkgvvvmipsyalhrdpkywtepekflperfskknkdnidpyiytpfgsgpr ncigmrfalmnmklalirvlqnfsfkpcketqiplklslggllqpekpvvlkvesrdgtv sgahhhh
>4k9vA (A:) hshglfkklgipgptplpflgnilsyhkgfcmfdmechkkygkvwgfydgqqpvlaitdp dmiktvlvkecysvftnrrpfgpvgfmksaisiaedeewkrlrsllsptftsgklkemvp iiaqygdvlvrnlrreaetgkpvtlkdvfgaysmdvitstsfgvnidslnnpqdpfvent kkllrfdfldpfflsitvfpflipilevlnicvfprevtnflrksvkrmkesrledtvdf lqlmidsqalsdlelvaqsiififagyettssvlsfimyelathpdvqqklqeeidavlp nkapptydtvlqmeyldmvvnetlrlfpiamrlervckkdveingmfipkgvvvmipsya lhrdpkywtepekflperfskknkdnidpyiytpfgsgprncigmrfalmnmklalirvl qnfsfkpcketqiplklslggllqpekpvvlkvesr