Chains and heterogens:
PDB Chain Sequences:
>7lprA (A:) anivggieysinnaslcsvgfsvtrgatkgfvtaghcgtvnatariggavvgtfaarvfp gndrawvsltsaqtllprvangssfvtvrgsteaavgaavcrsgrttgyqcgtitaknvt anyaegavrgltqgnacmgrgdsggswitsagqaqgvasggnvqsngnncgipasqrssl ferlqpilsqyglslvtg