TRP, DEG/ENaC, and TMC channel proteins coexpressed in mechanosensory and thermosensory neurons in C. elegans nematodes. The gross morphology of identified mechanosensory and thermosensory neurons in C. elegans are diagrammed, and the ion channel subunits that are expressed in each cell are listed. Sources for C. elegans neuron expression are listed by numbers: (1) Driscoll, M. and M. Chalfie, Nature, 349, 6310, 588–593, 1991; (2) Huang, M. and M. Chalfie, Nature, 367, 6462, 467–470, 1994; (3) Chatzigeorgiou, M. et al., Nature Neurosci, 13, 7, 861–868, 2010; (4) Smith, C.J. et al., Dev Biol, 345, 1, 18–33, 2010; (5) Colbert, H.A. et al., J Neurosci, 17, 21, 8259–8269, 1997; (6) Kindt, K.S. et al., Nature Neurosci, 10, 5, 568–577, 2007; (7) Tavernarakis, N. et al., Neuron, 18, 107–119, 1997; (8) Hall, D.H. et al., J Neurosci, 17, 3, 1033–1045, 1997; (9) Tobin, D.M. et al., Neuron, 35, 307–318, 2002; (10) Voglis, G. and N. Tavernarakis, EMBO J, 27, 24, 3288–3299, 2008; (11) Walker, R.G. et al., Science, 287, 5461, 2229–2234, 2000; (12) Li, W. et al., Nature, 440, 7084, 684–687, 2006.