Fig. 7.

Schematic phylogenetic tree from MUSCLE alignment. aLRT-SH over 0.5 are shown, with branches below 0.5 being collapsed. N1–N3 refer to the three nodes discussed in the manuscript. Clades with proteins that exhibit the “alternative” tryptophan triad are highlighted either in green, where almost all examples have the alternative triad (Cry-DASH), or green and black where some but not all examples have the alternative triad, as in the CPD Class I Photolyase and Plant Cry subfamilies. The full tree is in Supplementary Figure S5 (Color figure online)