>3tkyC (C:) observed residues (from ATOM records)
ssdeeanlfamqlasaavlpmalkaaieldvleimaksvppsgyispaeiaaqlpttnpe
apvmldrvlrllasysvvtytlrelpsgkverlyglapvckfltknedgvslapflllat
dkvllepwfylkdaileggipfnkaygmnifdyhgtdhrinkvfnkgmssnstitmkkil
emyngfeglttivdvgggtgavasmivakypsinainfdlphviqdapafsgvehlggdm
fdgvpkgdaifikwichdwsdehclkllkncyaalpdhgkvivaeyilppspdpsiatkv
vihtdalmlaynpggkertekefqalamasgfrgfkvascafntyvmeflkt