Chains and heterogens:
PDB Chain Sequences:
>1bx0A (A:) hskkmeegitvnkfkpktpyvgrcllntkitgddapgetwhmvfshegeipyregqsvgv ipdgedkngkphklrlysiassalgdfgdaksvslcvkrliytndagetikgvcsnflcd lkpgaevkltgpvgkemlmpkdpnatiimlgtgtgiapfrsflwkmffekhddykfngla wlflgvptsssllykeefekmkekapdnfrldfavsreqtnekgekmyiqtrmaqyavel wemlkkdntyfymcglkgmekgiddimvslaaaegidwieykrqlkkaeqwnvlvy