Figure S1 - Molecular Evolution of the Infrared Sensory Gene TRPA1 in Snakes and Implications for Functional Studies

Protein Sequence Alignment of TRPA1 including Snakes, Lizards, Birds, Mammals, and Amphibians. Putative ankyrin repeats (ANK) and transmembrane domains (TM) are indicated by black squares. The three amino acid sites proposed by yokoyama et al. (2011) that seem convergent in pit-bearing snakes are indicated by blue arrows. (PDF)