Introduction 2006 1997 2005 2007 3 2002 A C 2000 2005 2006 Drosophila melanogaster Apis mellifera Tribolium castaneum 2006 2007 2000 2005 2005 1997 2002 2002 Caenorhabditis elegans 1998 2004 2004 C. elegans 2005 C. elegans 2005 2000 C. elegans C. elegans Methods C. elegans http://www.wormbase.org 1997 1994 http://www.nrbsc.org/gfx/genedoc/index.html 1987 1996 Results and discussion C. elegans C. elegans 2006 2007 2004 1998 2007 lgc l g c 1 1 C. elegans C. elegans 1998 C. elegans 2006 Table 1 C. elegans 2005 2006  Fig. 1 C. elegans C. elegans 2007  Ungrouped subunits 1 C. elegans D. melanogaster Dirofilaria immitis 2004 2007 2005 2006 2004 2000 The EXP-1 Group 2003 2005 2005 2008 1 The AVR-14 Group 1 2005 1997 1997 2001 2006 2007 The UNC-49 Group unc-49 1999 1999 1 2006 Xenopus laevis Haemonchus contortus 2002 1 2005 The GGR-1 Group 1 2006 C. elegans 1 2005 The LGC-45 Group 1 1 2005 2008 1 The ACC-1 Group 2005 Lymnae stagnalis 2005 2005 2005 The MOD-1 Group 2000 2002 1 The GGR-3 Group 1 1 2005 C. elegans Cys-loop LGIC superfamilies of other nematode species Caenorhabditis briggsae C. elegans 2007 2003 C. elegans lgc-23 lgc-24 lgc-28 C. elegans 2007 elegans Cbr-lgc-28 C. briggsae lgc-23 lgc-24 C. elegans lgc-11 lgc-12 lgc-25 lgc-26 C. briggsae Cbr-lgc-11 Cbr-lgc-26 C. elegans lgc-13 lgc-18 C. briggsae avr-15 glc-1 elegans C. briggsae Brugia malyai Trichinella spiralis C. elegans C. briggsae 2007 C. elegans B. malayi C. elegans C. briggsae C. elegans