>4tlfD (D:) observed residues (from ATOM records)
ilrldrlrqfigelatlldsrpdestllaqahpllaelvhqddwlpedcarpdpqryqqy
llhvdsrqrfsvvsfvwgpgqitpvhdhrvwgligmlrgaeysqpyafdaggrphpsgar
rrlepgevealsprigdvhqvsnafsdrtsisihvyganigavrravfsaegeekpfisg
ysnsrlpniwdlskenpa