>1yyfC (C:) observed residues (from ATOM records)
ssfhattifavqhkgrsamsgdgqvtfgqavvmkhtarkvrklfngkvlagfagsvadaf
tlfekfeakleeyngnlkraavelakewrsdkvlrkleamlivmnqdtlllvsgtgevie
pddgilaigsggnyalaagralkkhagesmsaseiaraaletageicvytndqiileele