Rhodopsin family
Secretin receptor family
Calcium-regulating peptide
Calcitonin
K04576 CALCR; calcitonin receptor K04577 CALCRL; calcitonin receptor-like
Parathyroid hormone
Hypothalamic hormone
Pancreatic peptide
Gut peptide
Others
Adhesion receptor family
Metabotropic glutamate receptor family
Frizzled / Smoothened family