[Part (a) republished with permission of Nature, from Liao, M., “Structure of the TRPV1 ion channel determined by electron cry
o-microscopy,”
Nature, 2013,
504:10
7–112; permission conveyed through the Copyright Clearance Center, Inc. Part (b) data from M. Liao, et al., 2013,
Nature 504:10
7–112, PDB ID 3j5p. Part (c) data from E. Cao, et al., 2013,
Nature 504:11
3–118, PDB ID 3j5q.]