Chains and heterogens:
PDB Chain Sequences:
>4k9uA (A:) maylygthshglfkklgipgptplpflgnilsyhkgfcmfdmechkkygkvwgfydgqqp vlaitdpdmiktvlvkecysvftnrrpfgpvgfmksaisiaedeewkrlrsllsptftsg klkemvpiiaqygdvlvrnlrreaetgkpvtlkdvfgaysmdvitstsfgvnidslnnpq dpfventkkllrfdfldpfflsitvfpflipilevlnicvfprevtnflrksvkrmkesr ledtqkhrvdflqlmidsqnsketeshkalsdlelvaqsiififagyettssvlsfimye lathpdvqqklqeeidavlpnkapptydtvlqmeyldmvvnetlrlfpiamrlervckkd veingmfipkgvvvmipsyalhrdpkywtepekflperfskknkdnidpyiytpfgsgpr ncigmrfalmnmklalirvlqnfsfkpcketqiplklslggllqpekpvvlkvesrdgtv sgahhhh
>4k9uA (A:) thshglfkklgipgptplpflgnilsyhkgfcmfdmechkkygkvwgfydgqqpvlaitd pdmiktvlvkecysvftnrrpfgpvgfmksaisiaedeewkrlrsllsptftsgklkemv piiaqygdvlvrnlrreaetgkpvtlkdvfgaysmdvitstsfgvnidslnnpqdpfven tkkldpfflsitvfpflipilevlnicvfprevtnflrksvkrmkesrleddflqlmids qnalsdlelvaqsiififagyettssvlsfimyelathpdvqqklqeeidavlpnkappt ydtvlqmeyldmvvnetlrlfpiamrlervckkdveingmfipkgvvvmipsyalhrdpk ywtepekflperfskknkdnidpyiytpfgsgprncigmrfalmnmklalirvlqnfsfk pcketqiplklslggllqpekpvvlkvesr