>1xysA (A:) observed residues (from ATOM records)
glasladfpigvavaasggnadiftssarqnivraefnqitaenimkmsymysgsnfsft
nsdrlvswaaqngqtvhghalvwhpsyqlpnwasdsnanfrqdfarhidtvaahfagqvk
swdvvnealfdsaddpdgrgsangyrqsvfyrqfggpeyideafrraraadptaelyynd
fnteengakttalvnlvqrllnngvpidgvgfqmhvmndypsianirqamqkivalsptl
kikitcldvrlnnpydgnssndytnrndcavscagldrqkarykeivqaylevvppgrrg
gitvwgiadpdswlythqnlpdwpllfndnlqpkpayqgvveals