>4n1bC (C:) observed residues (from ATOM records) grliytaggyfrqslsyleaynpsdgtwldladlqvprsglagcvvggllyavggrnnsp dgntdssaldcynpmtnqwspcapmsvprnrigvgvidghiyavggshgcihhnsverye perdewhlvapmltrrigvgvavlnrllyavggfdgtnrlnsaecyypernewrmitamn tirsgagvcvlhnciyaaggydgqdqlnsverydvetetwtfvapmkhrrsalgitvhqg riyvlggydghtfldsvecydpdtdtwsevtrmtsgrsgvgvavtle