>4s17F (F:) observed residues (from ATOM records)
letkadaealinkegieyvsvrftdligvqqhftvpaseflkdaftdgmpfdgssvegfq
dmklvpdvstafidpfrkhktldvafsivdpdepysrdprqvagkaeaylkstgiadtas
fapeaeffifdkvrfensmqrsfyevdsieapwnsgidteddgtpniafknrvkkgyfpv
ppidhtqdlrddmvanlqkvglilershhevagagqqeinyrfnslqhagddlmkykyvv
hetaalagkaatfmpkpiagdngtgmhchqslwkdgkplfydeknygglsdlarwyiggl
ikhsssvlaftnpslnsyhrlvpgapvnlvysarnrsaairippaakriefrapdpscnp
flafsaqlmagldgilnhieppapvagikqvpsslaeamdaleedhdfltagdvftddli
dtwisikrgeidqarlaptpleyelyfhi