>6ffaA (A:) observed residues (from ATOM records) meltlyngekktfysrpnnhdncwlnailqlfryveepffdwvysspenltleaikqled ltglelheggppalviwnikhllhtgigtasrpsevcvvdgtdmcladfhagiflkgqeh avfacvtsngwyaiddedfypwtpdpsdvlvfvpyd