>4pnfF (F:) observed residues (from ATOM records)
kltlygldpsppvravkltlaalnltyeyvnvdivaraqlspeyleknpqhtvptleddg
hyiwdshaiiaylvskyadsdalypkdplkravvdqrlhfesgvvfangirsisksvlfq
gqtkvpkerydaiieiydfvetflkgqdyiagnqltiadfslvssvasleafvaldttky
prigawikkleqlpyyeeangkgvrqlvaifkktnftfea