>3nsrF (F:) observed residues (from ATOM records) sdvfhlgltkndlqgaqlaivpgdpervekiaalmdkpvklashreftswraeldgkavi vcstgiggpstsiaveelaqlgirtflrigttgaiqphinvgdvlvttasvrldgaslhf apmefpavadfacttalveaaksigatthvgvtassdtfypgqerydtysgrvvrrfkgs meewqamgvmnyemesatlltmcasqglragmvagvivnrtqeipnetmkqteshavkiv veaarrll