Chains and heterogens:
PDB Chain Sequences:
>1bzhA (A:) emekefeqidksgswaaiyqdirheasdfpcrvaklpknknrnryrdvspfdhsriklhq edndyinaslikmeeaqrsyiltqgplpntcghfwemvweqksrgvvmlnrvmekgslkc aqywpqkeekemifedtnlkltlisediksyytvrqlelenlttqetreilhfhyttwpd fgvpespasflnflfkvresgslspehgpvvvhcsagigrsgtfcladtclllmdkrkdp ssvdikkvlldmrkfrmgliqtaeqlrfsylaviegakfimgdssvqdqwkelshed