>3b1rB (B:) observed residues (from ATOM records)
atlicgsiaydnimtfegrfrehilpdqvhlinlsflvptmrrefggcagniayalnllg
gdarmmgtlgavdaqpyldrmdalglsreyvrvlpdtysaqamittdldnnqitafhpga
mmqshvnhageakdiklaivgpdgfqgmvqhteelaqagvpfifdpgqglplfdgatlrr
sielatyiavndyeaklvcdktgwsedeiasrvqaliitrgehgatirhrdgteqipavr
aervidptgcgdafrggllygiehgfdwatagrlaslmgalkiahqgpqtyaptraeida
rfetafgyrp