>2iyrA (A:) observed residues (from ATOM records)
apkavlvglpgsgkstigrrlakalgvglldtdvaieqrtgrsiadifatdgeqefrrie
edvvraaladhdgvlslgggavtspgvraalaghtvvyleisaaegvrrtggntagpdra
ekyralmakraplyrrvatmrvdtnrrnpgavvrhilsrlqvps