>2dftD (D:) observed residues (from ATOM records)
apkavlvglpgsgkstigrrlakalgvglldtdvaieqrtgrsiadifatdgeqefrrie
edvvraaladhdgvlslgggavtspgvraalaghtvvyleisaaegvrrtggntvrplla
gpdraekyralmakraplyrrvatmrvdtnrrnpgavvrhilsrl