Chains and heterogens:
PDB Chain Sequences:
>1fmkA (A:) mvttfvalydyesrtetdlsfkkgerlqivnntegdwwlahslstgqtgyipsnyvapsd siqaeewyfgkitrreserlllnaenprgtflvresettkgayclsvsdfdnakglnvkh ykirkldsggfyitsrtqfnslqqlvayyskhadglchrlttvcptskpqtqglakdawe ipreslrlevklgqgcfgevwmgtwngttrvaiktlkpgtmspeaflqeaqvmkklrhek lvqlyavvseepiyivteymskgslldflkgetgkylrlpqlvdmaaqiasgmayvermn yvhrdlraanilvgenlvckvadfglarliedneytarqgakfpikwtapeaalygrfti ksdvwsfgilltelttkgrvpypgmvnrevldqvergyrmpcppecpeslhdlmcqcwrk epeerptfeylqafledyftstepqyqpgenl
>1fmkA (A:) mvttfvalydyesrtetdlsfkkgerlqivnntegdwwlahslstgqtgyipsnyvapsd siqaeewyfgkitrreserlllnaenprgtflvresettkgayclsvsdfdnakglnvkh ykirkldsggfyitsrtqfnslqqlvayyskhadglchrlttvcptskpqtqglakdawe ipreslrlevklgqgcfgevwmgtwngttrvaiktlkpgtmspeaflqeaqvmkklrhek lvqlyavvseepiyivteymskgslldflkgetgkylrlpqlvdmaaqiasgmayvermn yvhrdlraanilvgenlvckvadfglarfpikwtapeaalygrftiksdvwsfgilltel ttkgrvpypgmvnrevldqvergyrmpcppecpeslhdlmcqcwrkepeerptfeylqaf ledyftstepqyqpgenl