>5k3aA (A:) observed residues (from ATOM records)
ladlfpgfgsewintssgrifarvggdgppllllhgfpqthvmwhrvapklaerfkviva
dlpgygwsdmpesdeqhtpytkramakqlieameqlghvhfalaghdrgarvsyrlalds
pgrlsklavldilptyeywqrmnrayalkiyhwsflaqpaplpenllggdpdfyvkakla
swtragdlsafdpravehyriafadpmrrhvmcedyragayadfehdkidveagnkipvp
mlalwgasgiaqsaatpldvwrkwasdvqgapiesgnflpeeapdqtaealvrffs