>1brrB (B:) observed residues (from ATOM records)
aqitgrpewiwlalgtalmglgtlyflvkgmgvsdpdakkfyaittlvpaiaftmylsml
lgygltmvpfggeqnpiywaryadwlfttplllldlallvdadqgtilalvgadgimigt
glvgaltkvysyrfvwwaistaamlyilyvlffgftskaesmrpevastfkvlrnvtvvl
wsaypvvwligsegagivplnietllfmvldvsakvgfglillrsraifge