Chains and heterogens:
PDB Chain Sequences:
>1pw9A (A:) gspglkgdkgipgdkgakgesglpdvaslrqqvealqgqvqhlqaafsqykkvelfpngq svgekifktagfvkpfteaqllctqaggqlasprsaaenaalqqlvvakneaaflsmtds ktegkftyptgeslvysnwapgepnddggsedcveiftngkwndracgekrlvvcef
>1pw9A (A:) aslrqqvealqgqvqhlqaafsqykkvelfpngqsvgekifktagfvkpfteaqllctqa ggqlasprsaaenaalqqlvvakneaaflsmtdsktegkftyptgeslvysnwapgepnd dggsedcveiftngkwndracgekrlvvcef
>1pw9B (B:) gspglkgdkgipgdkgakgesglpdvaslrqqvealqgqvqhlqaafsqykkvelfpngq svgekifktagfvkpfteaqllctqaggqlasprsaaenaalqqlvvakneaaflsmtds ktegkftyptgeslvysnwapgepnddggsedcveiftngkwndracgekrlvvcef
>1pw9B (B:) aslrqqvealqgqvqhlqaafsqykkvelfpngqsvgekifktagfvkpfteaqllctqa ggqlasprsaaenaalqqlvvakneaaflsmtdsktegkftyptgeslvysnwapgepnd dggsedcveiftngkwndracgekrlvvcef
>1pw9C (C:) gspglkgdkgipgdkgakgesglpdvaslrqqvealqgqvqhlqaafsqykkvelfpngq svgekifktagfvkpfteaqllctqaggqlasprsaaenaalqqlvvakneaaflsmtds ktegkftyptgeslvysnwapgepnddggsedcveiftngkwndracgekrlvvcef
>1pw9C (C:) slrqqvealqgqvqhlqaafsqykkvelfpngqsvgekifktagfvkpfteaqllctqag gqlasprsaaenaalqqlvvakneaaflsmtdsktegkftyptgeslvysnwapgepndd ggsedcveiftngkwndracgekrlvvcef