>1xbbA (A:) observed residues (from ATOM records)
vyldrklltledkelgsgnfgtvkkgyyqmkkvvktvavkilkpalkdellaeanvmqql
dnpyivrmigiceaeswmlvmemaelgplnkylqqnrhvkdkniielvhqvsmgmkylee
snfvhrdlaarnvllvtqhyakisdfglskalradenyykakwpvkwyapecinyykfss
ksdvwsfgvlmweafsygqkpyrgmkgsevtamlekgermgcpagcpremydlmnlcwty
dvenrpgfaavelrlrnyyydvvneghh