>1yl3F (F:) observed residues (from ATOM records)
meatiydntdgevdlpdvfetpvrsdligkavraaqanrkqdygsdeyaglrtpaesfgs
grgqahrvpqavkgrsahppktekdrsldlndkerqlavrsalaatadvvvsddfedlvk
tqevvsllealdvhadidrlfvtsdepstaarnlagadvatasevntedlapgrltvfte
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