>3tcfF (F:) observed residues (from ATOM records)
advpagvtlaekqtlvrnngsevqsldphkiegvpesnisrdlfegllvsdldghpapgv
aeswdnkdakvwtfhlrkdakwsdgtpvtaqdfvyswqrsvdpntaspyasylqyghiag
ideilegkkpitdlgvkaiddhtlevtlsepvpyfykllvhpstspvpkaaiekfgekwt
qpgnivtngaytlkdwvvnerivlersptywnnaktvinqvtylpiasevtdvnryrsge
idmtnnsmpielfqklkkeipdevhvdpylctyyyeinnqkppfndvrvrtalklgmdrd
iivnkvkaqgnmpaygytppytdgakltqpewfgwsqekrneeakkllaeagytadkplt
inllyntsdlhkklaiaasslwkknigvnvklvnqewktfldtrhqgtfdvaragwcady
neptsflntmlsnssmntahykspafdsimaetlkvtdeaqrtalytkaeqqldkdsaiv
pvyyyvnarlvkpwvggytgkdpldntytrnmyivkh