Peptide sequence: KGGHNSTMCF HYRDKHNAKG EAIFNFILVV MFWLIFLLII LSYIKIGKNL Sequence homology: Cow: 93%; Dog: 86%; Guinea Pig: 100%; Horse: 100%; Human: 100%; Mouse: 93%; Rabbit: 86%; Rat: 100%; Sheep: 93%. G protein-coupled receptors (GPCRs), such as GPR34