>2zkwB (B:) observed residues (from ATOM records)
atkavcvlkgdgpvqgiinfeqngpvkvwgsikglteglhgfhvhefgdnctsagphfnp
lsrkhggpkdeerhvgdlrnvtadkdgvadvsiedsvislsgdhciigrtlvvhekaddl
gkggneestktgnagsrlacgvigia