<unk>  shares structural similarities with the class A rhodopsin GPCR subfamily. It has 7 transmembrane domains with short N and C terminal extensions.<unk>  is 62–96% identical with<unk> 2-15, which suggests that the<unk> subfamily has recently evolved; while at the same time, the low degree of similarity between<unk>  orthologues suggests that they are rapidly evolving.<unk>  shares a predictive peptide motif with all other<unk> . This motif overlaps with transmembrane domain VII, and its identity is NSXXNPXXY,HXXXY,FXWF.<unk>  and its homologues have ligand pocket vectors that utilize sets of 35 amino acids known to be involved directly in receptor-ligand interaction.
TAAR1
INAH 3
PIM2
SMN1
JAMA
MCN
PANO1
CSTX