>2bckD (D:) observed residues (from ATOM records) gshsmryfstsvsrpgrgeprfiavgyvddtqfvrfdsdaasqrmeprapwieqegpeyw deetgkvkahsqtdrenlrialryynqseagshtlqmmfgcdvgsdgrflrgyhqyaydg kdyialkedlrswtaadmaaqitkrkweaahvaeqqraylegtcvdglrrylengketlq rtdppkthmthhpisdheatlrcwalgfypaeitltwqrdgedqtqdtelvetrpagdgt fqkwaavvvpsgeeqrytchvqheglpkpltlrwepgsggglndif