Figure 2: Rhodopsin secondary structure model.
From: Functional role of positively selected amino acid substitutions in mammalian rhodopsin evolution

Sites mutated in the present study, 13, 225 and 346 are circled in red.
From: Functional role of positively selected amino acid substitutions in mammalian rhodopsin evolution

Sites mutated in the present study, 13, 225 and 346 are circled in red.