>1y1sB (B:) observed residues (from ATOM records) sdvfhlgltkndlqgaqlaivpgdpervekiaalmdkpvklashreftswraeldgkavi vcstgiggpstsiaveelaqlgirtflrigttgaiqphinvgdvlvttasvrldgaslhf apmefpavadfacttalveaaksigatthvgvtassdtfypgqerydtysgrvvrrfkgs meewqamgvmnyemesatlltmcasqglragmvagvivnrtqqeipnaetmkqteshavk ivveaarrll