>4rx9A (A:) observed residues (from ATOM records)
vyldrklltledkelgfgtvkkgyyqmkkvvktvavkilkpalkdellaeanvmqqldnp
yivrmigiceaeswmlvmemaelgplnkylqqnrhvtdkniielvhqvsmgmkyleesnf
vhrdlaarnvllvtqhyakisdfglskalradenyykaqtgkwpvkwyapecinyykfss
ksdvwsfgvlmweafsygqkpyrgmkgsevtamlekgermgcpagcpremydlmnlcwty
dvenrpgfaavelrlrnyyydvvnhhhh