Chains and heterogens:
PDB Chain Sequences:
>1pwbA (A:) gspglkgdkgipgdkgakgesglpdvaslrqqvealqgqvqhlqaafsqykkvelfpngq svgekifktagfvkpfteaqllctqaggqlasprsaaenaalqqlvvakneaaflsmtds ktegkftyptgeslvysnwapgepnddggsedcveiftngkwndracgekrlvvcef
>1pwbA (A:) aslrqqvealqgqvqhlqaafsqykkvelfpngqsvgekifktagfvkpfteaqllctqa ggqlasprsaaenaalqqlvvakneaaflsmtdsktegkftyptgeslvysnwapgepnd dggsedcveiftngkwndracgekrlvvcef
>1pwbB (B:) gspglkgdkgipgdkgakgesglpdvaslrqqvealqgqvqhlqaafsqykkvelfpngq svgekifktagfvkpfteaqllctqaggqlasprsaaenaalqqlvvakneaaflsmtds ktegkftyptgeslvysnwapgepnddggsedcveiftngkwndracgekrlvvcef
>1pwbB (B:) aslrqqvealqgqvqhlqaafsqykkvelfpngqsvgekifktagfvkpfteaqllctqa ggqlasprsaaenaalqqlvvakneaaflsmtdsktegkftyptgeslvysnwapgepnd dggsedcveiftngkwndracgekrlvvcef
>1pwbC (C:) gspglkgdkgipgdkgakgesglpdvaslrqqvealqgqvqhlqaafsqykkvelfpngq svgekifktagfvkpfteaqllctqaggqlasprsaaenaalqqlvvakneaaflsmtds ktegkftyptgeslvysnwapgepnddggsedcveiftngkwndracgekrlvvcef
>1pwbC (C:) slrqqvealqgqvqhlqaafsqykkvelfpngqsvgekifktagfvkpfteaqllctqag gqlasprsaaenaalqqlvvakneaaflsmtdsktegkftyptgeslvysnwapgepndd ggsedcveiftngkwndracgekrlvvcef