>4pnfA (A:) observed residues (from ATOM records)
vkltlygldpsppvravkltlaalnltyeyvnvdivaraqlspeyleknpqhtvptledd
ghyiwdshaiiaylvskyadsdalypkdplkravvdqrlhfesgvvfangirsisksvlf
qgqtkvpkerydaiieiydfvetflkgqdyiagnqltiadfslvssvasleafvaldttk
yprigawikkleqlpyyeeangkgvrqlvaifkktnftfe