>3a2cB (B:) observed residues (from ATOM records)
hvksglqikknaiiddykvtsqvlglgingkvlqifnkrtqekfalkmlqdcpkarreve
lhwrasqcphivrivdvyenlyagrkcllivmecldggelfsriqdrgdqaftereasei
mksigeaiqylhsiniahrdvkpenllytskrpnailkltdfgfakettsvapevlydks
cdmwslgvimyillcgyppfysnspgmktrirmgqyefpnpewsevseevkmlirnllkt
eptqrmtitefmnhpwimqstkvpqtplhtsrvlked