Chains and heterogens:
PDB Chain Sequences:
>1p11E (E:) anivggieysinnaslcsvgfsvtrgatkgfvtaghcgtvnatariggavvgtfaarvfp gndrawvsltsaqtllprvangssfvtvrgsteaavgaavcrsgrttgyqcgtitaknvt anyaegavrgltqgnacmgrgdsggswitsagqaqgvmsggnvqsngnncgipasqrssl ferlqpilsqyglslvtg