>5lefB (B:) observed residues (from ATOM records) fklvflgeqsvgktslitrfmydsfdntyqatigidflsktmdrtvrlqlwdtaglerfr slipsyirdstvavvvyditnvnsfqqttkwiddvrtergsdviimlvgnktdladkrqv sieegerkakelnvmfietsakagynvkqlfrrvaaalp