>1nxkA (A:) observed residues (from ATOM records)
qfpqfhvksglqikknaiiddykvtsqvlglgingkvlqifnkrtqekfalkmlqdcpka
rrevelhwrasqcphivrivdvyenlyagrkcllivmecldggelfsriqdraftereas
eimksigeaiqylhsiniahrdvkpenllytskrpnailkltdfgfakettpyyvapevl
gpekydkscdmwslgvimyillcgyppfysnhglaispgmktrirmgqyefpnpewsevs
eevkmlirnllkteptqrmtitefmnhpwimqstkvpqtplhtsrvlked