>1n18F (F:) observed residues (from ATOM records)
atkavavlkgdgpvqgiinfeqkesngpvkvwgsikglteglhgfhvhefgdntagctsa
gphfnplsrkhggpkdeerhvgdlgnvtadkdgvadvsiedsvislsgdhsiigrtlvvh
ekaddlgkggneestktgnagsrlacgvigiaq