>4z7wD (D:) observed residues (from ATOM records)
spedfvyqfkgmcyftngtervrlvtryiynreeyarfdsdvgvyravtplgppaaeywn
sqkevlertraeldtvcrhnyqlelrttlqrrveptvtispshnllvcsvtdfypaqikv
rwfrndqeettgvvstplirngdwtfqilvmlemtpqrgdvytchvehpslqnpiivewr